BGP Routing: 2012-04-08

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, April 14, 2012

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 15 Apr, 2012

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 409926
Prefixes after maximum aggregation: 173761
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 197053
Total ASes present in the Internet Routing Table: 40735
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 33009
Origin ASes announcing only one prefix: 15612
Transit ASes present in the Internet Routing Table: 5495
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 27
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 5963
Unregistered ASNs in the Routing Table: 153
Number of 32-bit ASNs allocated by the RIRs: 2572
Number of 32-bit ASNs visible in the Routing Table: 2231
Prefixes from 32-bit ASNs in the Routing Table: 5525
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2537105757
Equivalent to 151 /8s, 57 /16s and 41 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 173575

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97662
Total APNIC prefixes after maximum aggregation: 31152
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 94187
Unique aggregates announced from the APNIC address blocks: 39520
APNIC Region origin ASes present in the Internet Routing Table: 4658
APNIC Prefixes per ASN: 20.22
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 744
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 182
Number of APNIC addresses announced to Internet: 643258376
Equivalent to 38 /8s, 87 /16s and 88 /24s
Percentage of available APNIC address space announced: 81.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 152442
Total ARIN prefixes after maximum aggregation: 78331
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123496
Unique aggregates announced from the ARIN address blocks: 50264
ARIN Region origin ASes present in the Internet Routing Table: 15043
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5708
ARIN Region transit ASes present in the Internet Routing Table: 1582
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807172864
Equivalent to 48 /8s, 28 /16s and 123 /24s
Percentage of available ARIN address space announced: 64.1

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 103399
Total RIPE prefixes after maximum aggregation: 53754
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 94455
Unique aggregates announced from the RIPE address blocks: 58084
RIPE Region origin ASes present in the Internet Routing Table: 16501
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 8048
RIPE Region transit ASes present in the Internet Routing Table: 2654
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1502
Number of RIPE addresses announced to Internet: 509465740
Equivalent to 30 /8s, 93 /16s and 212 /24s
Percentage of available RIPE address space announced: 82.1

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 41162
Total LACNIC prefixes after maximum aggregation: 8306
LACNIC Deaggregation factor: 4.96
Prefixes being announced from the LACNIC address blocks: 40946
Unique aggregates announced from the LACNIC address blocks: 20097
LACNIC Region origin ASes present in the Internet Routing Table: 1583
LACNIC Prefixes per ASN: 25.87
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 298
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 525
Number of LACNIC addresses announced to Internet: 99325448
Equivalent to 5 /8s, 235 /16s and 150 /24s
Percentage of available LACNIC address space announced: 65.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 9518
Total AfriNIC prefixes after maximum aggregation: 2149
AfriNIC Deaggregation factor: 4.43
Prefixes being announced from the AfriNIC address blocks: 7558
Unique aggregates announced from the AfriNIC address blocks: 2172
AfriNIC Region origin ASes present in the Internet Routing Table: 536
AfriNIC Prefixes per ASN: 14.10
AfriNIC Region origin ASes announcing only one prefix: 167
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31692288
Equivalent to 1 /8s, 227 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 47.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1922 11108 694 Korea Telecom (KIX)
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1658 301 88 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1242 94 539 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1079 2031 310 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd.
18101 947 131 160 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3425 1020 170 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1903 680 129 AppliedTheory Corporation
20115 1644 1565 620 Charter Communications
4323 1597 1060 381 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1429 261 750 Mediacom Communications Corp
7018 1283 13886 831 AT&T WorldNet Services
11492 1186 216 364 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1653 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
286 1067 853 199 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 657 661 62 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 630 203 495 Akamai Technologies European
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1803 326 174 TVCABLE BOGOTA
28573 1776 1107 59 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1450 3002 328 Uninet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 98 Telconet S.A
11172 639 107 74 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 576 242 100 COLOMBIA TELECOMUNICACIONES S

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1303 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
16284 537 4 13 GST-N Autonomous System
6713 489 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 15 16 Ci Telecom Autonomous system

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3425 1020 170 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1903 680 129 AppliedTheory Corporation
10620 1803 326 174 TVCABLE BOGOTA
17974 1801 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1776 1107 59 Types of queries are: POCs, o
7545 1658 301 88 TPG Internet Pty Ltd
8402 1653 544 16 Corbina telecom

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3425 3255 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1903 1774 AppliedTheory Corporation
17974 1801 1738 PT TELEKOMUNIKASI INDONESIA
28573 1776 1717 Types of queries are: POCs, o
8402 1653 1637 Corbina telecom
10620 1803 1629 TVCABLE BOGOTA
7545 1658 1570 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1576 1465 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
37.233.0.0/18 31252 StarNet Moldova

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:28 /11:81 /12:235
/13:460 /14:838 /15:1520 /16:12353 /17:6545 /18:10899
/19:21181 /20:30038 /21:30280 /22:40971 /23:38298 /24:214102
/25:91 /26:99 /27:112 /28:290 /29:253 /30:728
/31:20 /32:473

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3063 3425 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1803 TVCABLE BOGOTA
8402 1630 1653 Corbina telecom
30036 1375 1429 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1111 1303 TEDATA
1785 1069 1903 AppliedTheory Corporation

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:536 2:670 4:18 6:3 8:402 12:2002
13:1 14:602 15:12 16:3 17:7 20:8
23:159 24:1777 27:1269 31:1008 32:119 33:2
34:2 36:8 37:347 38:793 39:4 40:120
41:3165 42:136 44:3 46:1480 47:3 49:388
50:538 52:13 54:7 55:7 56:3 57:39
58:980 59:520 60:281 61:1273 62:991 63:2005
64:4186 65:2254 66:4525 67:2051 68:1336 69:3269
70:953 71:476 72:1849 73:1 74:2648 75:508
76:330 77:969 78:1008 79:503 80:1213 81:909
82:673 83:550 84:501 85:1211 86:430 87:931
88:354 89:1653 90:297 91:4741 92:524 93:1352
94:1479 95:1148 96:363 97:319 98:909 99:37
100:7 101:177 103:985 106:105 107:185 108:231
109:1310 110:762 111:920 112:455 113:595 114:629
115:871 116:911 117:717 118:915 119:1221 120:352
121:830 122:1673 123:1096 124:1376 125:1266 128:562
129:193 130:255 131:596 132:173 133:21 134:245
135:62 136:212 137:177 138:355 139:159 140:489
141:244 142:388 143:398 144:516 145:69 146:496
147:288 148:803 149:301 150:160 151:176 152:464
153:172 154:8 155:445 156:215 157:381 158:177
159:522 160:336 161:259 162:352 163:190 164:570
165:412 166:571 167:464 168:817 169:128 170:857
171:127 172:4 173:1737 174:589 175:442 176:488
177:647 178:1335 180:1217 181:73 182:802 183:285
184:455 185:1 186:2189 187:1031 188:1190 189:1798
190:5539 192:6031 193:5569 194:4663 195:3625 196:1295
197:121 198:3651 199:4502 200:5813 201:1930 202:8573
203:8645 204:4350 205:2491 206:2774 207:2814 208:4073
209:3616 210:2784 211:1490 212:2049 213:1917 214:836
215:104 216:5105 217:1543 218:547 219:358 220:1233
221:557 222:329 223:334

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 15 Apr, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 399041
Prefixes after maximum aggregation: 170287
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196830
Total ASes present in the Internet Routing Table: 38327
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33037
Origin ASes announcing only one prefix: 15615
Transit ASes present in the Internet Routing Table: 5290
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1199
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 2572
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5454
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 114
Number of addresses announced to Internet: 2553474048
Equivalent to 152 /8s, 50 /16s and 236 /24s
Percentage of available address space announced: 68.9
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 168667

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 93967
Total APNIC prefixes after maximum aggregation: 30840
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91421
Unique aggregates announced from the APNIC address blocks: 39545
APNIC Region origin ASes present in the Internet Routing Table: 4627
APNIC Prefixes per ASN: 19.76
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643097088
Equivalent to 38 /8s, 84 /16s and 226 /24s
Percentage of available APNIC address space announced: 81.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 148345
Total ARIN prefixes after maximum aggregation: 75604
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119901
Unique aggregates announced from the ARIN address blocks: 50199
ARIN Region origin ASes present in the Internet Routing Table: 14967
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5717
ARIN Region transit ASes present in the Internet Routing Table: 1510
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807109888
Equivalent to 48 /8s, 27 /16s and 133 /24s
Percentage of available ARIN address space announced: 64.1

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 101554
Total RIPE prefixes after maximum aggregation: 53539
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93509
Unique aggregates announced from the RIPE address blocks: 58049
RIPE Region origin ASes present in the Internet Routing Table: 16466
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8038
RIPE Region transit ASes present in the Internet Routing Table: 2600
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 508675328
Equivalent to 30 /8s, 81 /16s and 197 /24s
Percentage of available RIPE address space announced: 81.9

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 39934
Total LACNIC prefixes after maximum aggregation: 8118
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 39932
Unique aggregates announced from the LACNIC address blocks: 20145
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 25.37
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99263232
Equivalent to 5 /8s, 234 /16s and 163 /24s
Percentage of available LACNIC address space announced: 65.7

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8980
Total AfriNIC prefixes after maximum aggregation: 2117
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7050
Unique aggregates announced from the AfriNIC address blocks: 2158
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31507456
Equivalent to 1 /8s, 224 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 46.9

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1924 11110 696 Korea Telecom (KIX)
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1658 301 88 TPG Internet Pty Ltd
4755 1574 387 163 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1235 1041 30 National Internet Backbone
7552 1105 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 981 1946 285 CNCGROUP IP network China169
18101 948 131 160 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3429 3807 196 BellSouth.net Inc.
7029 3420 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1903 680 129 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1597 1060 381 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1428 260 749 Mediacom Communications Corp
7018 1286 9807 835 AT&T Services, Inc.
11492 1186 216 364 CABLE ONE, INC.

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1622 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 175 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 653 661 62 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 625 203 493 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 504 360 81 Bezeq International

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1357 827 190 Telecom Argentina S.A.
8151 1348 3001 344 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 666 74 99 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 Types of queries are: POCs, o

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1303 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 15 16 Ci Telecom Autonomous system
16637 160 666 85 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3429 3807 196 BellSouth.net Inc.
7029 3420 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1903 680 129 PaeTec Communications, Inc.
10620 1803 326 174 Types of queries are: POCs, o
28573 1776 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1658 301 88 TPG Internet Pty Ltd
20115 1642 1565 619 Charter Communications

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3420 3251 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1903 1774 PaeTec Communications, Inc.
28573 1776 1717 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
10620 1803 1629 Types of queries are: POCs, o
8402 1622 1606 Corbina telecom
7545 1658 1570 TPG Internet Pty Ltd
22773 1575 1464 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:28 /11:81 /12:235
/13:459 /14:830 /15:1479 /16:12144 /17:6255 /18:10420
/19:20618 /20:28710 /21:29547 /22:40027 /23:37473 /24:210152
/25:11 /26:21 /27:20 /28:153 /29:143 /30:66
/31:0 /32:137

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3060 3420 Windstream Communications Inc
6389 2146 3429 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1803 Types of queries are: POCs, o
8402 1599 1622 Corbina telecom
30036 1374 1428 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1111 1303 TEDATA
1785 1069 1903 PaeTec Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:530 2:663 4:14 6:3 8:401 12:1964
13:1 14:593 15:12 16:3 17:7 20:8
23:157 24:1764 27:1262 31:1001 32:52 33:1
34:2 36:8 37:345 38:788 40:120 41:3159
42:135 44:3 46:1475 47:3 49:379 50:536
52:13 54:7 55:9 56:3 57:28 58:928
59:511 60:278 61:1157 62:977 63:1986 64:4139
65:2251 66:4486 67:2029 68:1151 69:3152 70:906
71:476 72:1819 74:2593 75:495 76:318 77:964
78:992 79:474 80:1208 81:898 82:665 83:547
84:489 85:1198 86:412 87:920 88:351 89:1631
90:297 91:4693 92:521 93:1351 94:1470 95:1134
96:355 97:319 98:902 99:34 100:7 101:169
103:961 106:104 107:185 108:210 109:1303 110:735
111:915 112:435 113:579 114:616 115:863 116:880
117:698 118:901 119:1177 120:347 121:786 122:1632
123:1087 124:1303 125:1262 128:523 129:184 130:247
131:590 132:161 133:21 134:232 135:62 136:208
137:174 138:355 139:146 140:462 141:243 142:369
143:392 144:510 145:69 146:489 147:278 148:747
149:300 150:152 151:176 152:462 153:172 154:6
155:445 156:212 157:335 158:177 159:450 160:334
161:235 162:347 163:180 164:565 165:394 166:570
167:464 168:810 169:126 170:857 171:127 172:4
173:1719 174:583 175:418 176:488 177:647 178:1326
180:1178 181:73 182:771 183:285 184:453 185:1
186:2188 187:1028 188:1187 189:1794 190:5512 192:5958
193:5551 194:4633 195:3576 196:1257 197:117 198:3583
199:4440 200:5700 201:1923 202:8298 203:8506 204:4267
205:2468 206:2658 207:2706 208:4043 209:3564 210:2677
211:1454 212:2004 213:1901 214:828 215:103 216:5062
217:1539 218:528 219:340 220:1222 221:538 222:294
223:320

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 15 Apr, 2012

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 405698
Prefixes after maximum aggregation: 172379
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196878
Total ASes present in the Internet Routing Table: 40691
Prefixes per ASN: 9.97
Origin-only ASes present in the Internet Routing Table: 33032
Origin ASes announcing only one prefix: 15586
Transit ASes present in the Internet Routing Table: 5443
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 69
Max AS path prepend of ASN ( 9902) 61
Prefixes from unregistered ASNs in the Routing Table: 386
Unregistered ASNs in the Routing Table: 124
Number of 32-bit ASNs allocated by the RIRs: 2572
Number of 32-bit ASNs visible in the Routing Table: 2216
Prefixes from 32-bit ASNs in the Routing Table: 5494
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2536376272
Equivalent to 151 /8s, 46 /16s and 7 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 172871

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 99686
Total APNIC prefixes after maximum aggregation: 32232
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 96123
Unique aggregates announced from the APNIC address blocks: 39534
APNIC Region origin ASes present in the Internet Routing Table: 4669
APNIC Prefixes per ASN: 20.59
APNIC Region origin ASes announcing only one prefix: 1231
APNIC Region transit ASes present in the Internet Routing Table: 728
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 182
Number of APNIC addresses announced to Internet: 643221216
Equivalent to 38 /8s, 86 /16s and 198 /24s
Percentage of available APNIC address space announced: 81.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 149612
Total ARIN prefixes after maximum aggregation: 76115
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 120912
Unique aggregates announced from the ARIN address blocks: 50246
ARIN Region origin ASes present in the Internet Routing Table: 15023
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5715
ARIN Region transit ASes present in the Internet Routing Table: 1583
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807013824
Equivalent to 48 /8s, 26 /16s and 13 /24s
Percentage of available ARIN address space announced: 64.1

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 101361
Total RIPE prefixes after maximum aggregation: 53599
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 93261
Unique aggregates announced from the RIPE address blocks: 58054
RIPE Region origin ASes present in the Internet Routing Table: 16486
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 8038
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1490
Number of RIPE addresses announced to Internet: 509317512
Equivalent to 30 /8s, 91 /16s and 145 /24s
Percentage of available RIPE address space announced: 82.0

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 40633
Total LACNIC prefixes after maximum aggregation: 8250
LACNIC Deaggregation factor: 4.93
Prefixes being announced from the LACNIC address blocks: 40462
Unique aggregates announced from the LACNIC address blocks: 20118
LACNIC Region origin ASes present in the Internet Routing Table: 1584
LACNIC Prefixes per ASN: 25.54
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 522
Number of LACNIC addresses announced to Internet: 99299720
Equivalent to 5 /8s, 235 /16s and 49 /24s
Percentage of available LACNIC address space announced: 65.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 8741
Total AfriNIC prefixes after maximum aggregation: 2114
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6812
Unique aggregates announced from the AfriNIC address blocks: 2125
AfriNIC Region origin ASes present in the Internet Routing Table: 532
AfriNIC Prefixes per ASN: 12.80
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31644416
Equivalent to 1 /8s, 226 /16s and 219 /24s
Percentage of available AfriNIC address space announced: 47.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2488 11113 1009 Korea Telecom (KIX)
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1664 301 87 TPG Internet Pty Ltd
4755 1590 388 166 TATA Communications formerly
9583 1249 95 542 Sify Limited
9829 1232 1041 30 BSNL National Internet Backbo
7552 1171 1062 11 Vietel Corporation
4808 1096 2050 316 CNCGROUP IP network: China169
24560 1023 385 167 Bharti Airtel Ltd., Telemedia
18101 947 131 160 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3384 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1600 1044 380 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1429 261 750 Mediacom Communications Corp
7018 1279 9774 828 AT&T WorldNet Services
11492 1186 216 364 Cable One

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1709 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 175 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 657 661 62 Uni2 Autonomous System
20940 641 204 494 Akamai Technologies European
6830 639 1943 410 UPC Distribution Services
8551 573 360 81 Bezeq International
3320 533 8442 399 Deutsche Telekom AG
2578 501 33 7 Demos, Moscow, Russia

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1803 326 174 TVCABLE BOGOTA
28573 1777 1107 59 NET Servicos de Comunicao S.A
6503 1533 418 65 AVANTEL, S.A.
8151 1483 3020 350 UniNet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Tim Brasil S.A.
27947 689 74 99 Telconet S.A
11172 637 91 73 Servicios Alestra S.A de C.V
22047 582 326 15 VTR PUNTO NET S.A.
3816 572 242 100 Empresa Nacional de Telecomun

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1235 958 13 TEDATA
24863 698 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
33776 195 12 24 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
16637 172 666 82 MTN Network Solutions
15706 169 32 6 Sudatel Internet Exchange Aut
29571 161 15 16 Ci Telecom Autonomous system

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3384 985 157 Windstream Communications Inc
4766 2488 11113 1009 Korea Telecom (KIX)
18566 2091 382 179 Covad Communications
1785 1901 680 130 PaeTec Communications, Inc.
10620 1803 326 174 TVCABLE BOGOTA
17974 1799 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1777 1107 59 NET Servicos de Comunicao S.A
8402 1709 544 16 Corbina telecom
7545 1664 301 87 TPG Internet Pty Ltd

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3384 3227 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1901 1771 PaeTec Communications, Inc.
17974 1799 1736 PT TELEKOMUNIKASI INDONESIA
28573 1777 1718 NET Servicos de Comunicao S.A
8402 1709 1693 Corbina telecom
10620 1803 1629 TVCABLE BOGOTA
7545 1664 1577 TPG Internet Pty Ltd
4766 2488 1479 Korea Telecom (KIX)
6503 1533 1468 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:28 /11:81 /12:235
/13:460 /14:832 /15:1479 /16:12195 /17:6277 /18:10517
/19:20622 /20:28877 /21:29869 /22:40487 /23:37734 /24:212320
/25:1194 /26:1422 /27:783 /28:160 /29:59 /30:17
/31:0 /32:19

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3042 3384 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1803 TVCABLE BOGOTA
8402 1686 1709 Corbina telecom
30036 1375 1429 Mediacom Communications Corp
6503 1291 1533 AVANTEL, S.A.
11492 1149 1186 Cable One
1785 1069 1901 PaeTec Communications, Inc.
7011 1068 1183 Citizens Utilities

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:532 2:715 4:14 6:3 8:401 12:1997
13:1 14:599 15:12 16:3 17:7 20:8
23:159 24:1769 27:1269 31:975 32:57 33:2
34:2 36:8 37:345 38:793 40:120 41:3050
42:135 44:3 46:1471 47:3 49:383 50:535
52:13 54:7 55:7 56:3 57:31 58:974
59:520 60:282 61:1262 62:979 63:1990 64:4163
65:2253 66:4500 67:2029 68:1152 69:3155 70:907
71:476 72:1819 74:2594 75:495 76:318 77:968
78:1005 79:490 80:1208 81:902 82:660 83:548
84:490 85:1206 86:405 87:925 88:351 89:1631
90:297 91:4724 92:521 93:1350 94:1471 95:1145
96:360 97:319 98:902 99:37 100:7 101:173
103:983 106:105 107:184 108:229 109:1307 110:751
111:920 112:454 113:595 114:623 115:871 116:905
117:717 118:902 119:1219 120:336 121:806 122:1672
123:1091 124:1370 125:1265 128:559 129:190 130:250
131:595 132:173 133:21 134:242 135:62 136:210
137:177 138:355 139:147 140:489 141:244 142:387
143:398 144:516 145:69 146:494 147:278 148:768
149:301 150:160 151:176 152:464 153:172 154:7
155:428 156:212 157:379 158:177 159:522 160:336
161:259 162:352 163:190 164:570 165:394 166:571
167:464 168:816 169:127 170:857 171:127 172:4
173:1719 174:582 175:430 176:487 177:647 178:1333
180:1190 181:73 182:797 183:285 184:453 185:1
186:2186 187:1030 188:1187 189:1798 190:5530 192:5999
193:5546 194:4634 195:3580 196:1280 197:121 198:3629
199:4494 200:5801 201:1926 202:8562 203:8611 204:4346
205:2488 206:2748 207:2775 208:4051 209:3587 210:2760
211:1478 212:2004 213:1905 214:833 215:104 216:5090
217:1525 218:543 219:344 220:1226 221:556 222:323
223:334

End of report
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Friday, April 13, 2012

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 14 Apr, 2012

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 409834
Prefixes after maximum aggregation: 173704
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 197038
Total ASes present in the Internet Routing Table: 40751
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 33061
Origin ASes announcing only one prefix: 15638
Transit ASes present in the Internet Routing Table: 5461
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 6037
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 2561
Number of 32-bit ASNs visible in the Routing Table: 2229
Prefixes from 32-bit ASNs in the Routing Table: 5571
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2537252949
Equivalent to 151 /8s, 59 /16s and 104 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 173413

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 97582
Total APNIC prefixes after maximum aggregation: 31149
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94117
Unique aggregates announced from the APNIC address blocks: 39524
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 20.19
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 182
Number of APNIC addresses announced to Internet: 643275776
Equivalent to 38 /8s, 87 /16s and 156 /24s
Percentage of available APNIC address space announced: 81.6

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 152548
Total ARIN prefixes after maximum aggregation: 78371
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123594
Unique aggregates announced from the ARIN address blocks: 50270
ARIN Region origin ASes present in the Internet Routing Table: 15055
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5726
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807229952
Equivalent to 48 /8s, 29 /16s and 90 /24s
Percentage of available ARIN address space announced: 64.2

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 103374
Total RIPE prefixes after maximum aggregation: 53741
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 94455
Unique aggregates announced from the RIPE address blocks: 58075
RIPE Region origin ASes present in the Internet Routing Table: 16502
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 8051
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1500
Number of RIPE addresses announced to Internet: 509452684
Equivalent to 30 /8s, 93 /16s and 161 /24s
Percentage of available RIPE address space announced: 82.1

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 41187
Total LACNIC prefixes after maximum aggregation: 8222
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 41007
Unique aggregates announced from the LACNIC address blocks: 20102
LACNIC Region origin ASes present in the Internet Routing Table: 1583
LACNIC Prefixes per ASN: 25.90
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 525
Number of LACNIC addresses announced to Internet: 99331080
Equivalent to 5 /8s, 235 /16s and 172 /24s
Percentage of available LACNIC address space announced: 65.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 9329
Total AfriNIC prefixes after maximum aggregation: 2152
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 7370
Unique aggregates announced from the AfriNIC address blocks: 2167
AfriNIC Region origin ASes present in the Internet Routing Table: 538
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31684352
Equivalent to 1 /8s, 227 /16s and 119 /24s
Percentage of available AfriNIC address space announced: 47.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1922 11108 694 Korea Telecom (KIX)
17974 1803 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1658 301 88 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1243 94 540 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1170 1062 11 Vietel Corporation
24560 1023 385 167 Bharti Airtel Ltd.
4808 993 1942 286 CNCGROUP IP network: China169
18101 947 131 160 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3421 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1898 680 130 AppliedTheory Corporation
20115 1643 1565 619 Charter Communications
4323 1594 1044 378 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1446 263 757 Mediacom Communications Corp
7018 1285 9791 834 AT&T WorldNet Services
11492 1185 216 365 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1657 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
286 1066 853 199 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 656 660 61 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 629 203 494 Akamai Technologies European
8551 576 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1803 326 174 TVCABLE BOGOTA
28573 1776 1107 59 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1517 3001 323 Uninet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 687 74 99 Telconet S.A
11172 638 91 73 Alestra
22047 583 326 15 Types of queries are: POCs, o
3816 575 242 100 COLOMBIA TELECOMUNICACIONES S

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 1304 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
16284 331 4 11 GST-N Autonomous System
3741 265 921 223 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3428 3807 195 bellsouth.net, inc.
7029 3421 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1898 680 130 AppliedTheory Corporation
10620 1803 326 174 TVCABLE BOGOTA
17974 1803 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1776 1107 59 Types of queries are: POCs, o
7545 1658 301 88 TPG Internet Pty Ltd
8402 1657 544 16 Corbina telecom

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
7029 3421 3255 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1898 1768 AppliedTheory Corporation
17974 1803 1740 PT TELEKOMUNIKASI INDONESIA
28573 1776 1717 Types of queries are: POCs, o
8402 1657 1641 Corbina telecom
10620 1803 1629 TVCABLE BOGOTA
7545 1658 1570 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1576 1465 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:28 /11:81 /12:235
/13:460 /14:838 /15:1520 /16:12357 /17:6542 /18:10896
/19:21183 /20:30044 /21:30289 /22:40973 /23:38322 /24:214177
/25:70 /26:76 /27:111 /28:280 /29:194 /30:635
/31:20 /32:472

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
7029 3064 3421 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1803 TVCABLE BOGOTA
8402 1634 1657 Corbina telecom
30036 1392 1446 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1112 1304 TEDATA
1785 1069 1898 AppliedTheory Corporation

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:536 2:638 4:18 6:3 8:401 12:1994
13:1 14:606 15:12 16:3 17:7 20:8
23:158 24:1777 27:1270 31:1006 32:119 33:2
34:2 36:8 37:344 38:798 39:4 40:120
41:3173 42:134 44:3 46:1471 47:3 49:388
50:538 52:13 54:7 55:9 56:3 57:39
58:966 59:518 60:281 61:1277 62:992 63:2007
64:4184 65:2255 66:4521 67:2051 68:1334 69:3266
70:954 71:473 72:1850 73:1 74:2649 75:509
76:330 77:966 78:1008 79:504 80:1210 81:909
82:674 83:550 84:502 85:1212 86:431 87:931
88:354 89:1647 90:297 91:4742 92:525 93:1386
94:1477 95:1152 96:363 97:319 98:907 99:37
100:7 101:173 103:979 106:105 107:185 108:228
109:1311 110:767 111:920 112:455 113:594 114:629
115:871 116:905 117:725 118:916 119:1224 120:355
121:830 122:1673 123:1095 124:1376 125:1266 128:564
129:194 130:255 131:600 132:173 133:21 134:247
135:62 136:212 137:177 138:355 139:159 140:489
141:244 142:389 143:399 144:520 145:69 146:492
147:287 148:801 149:301 150:160 151:176 152:464
153:172 154:8 155:446 156:215 157:381 158:177
159:523 160:343 161:259 162:352 163:190 164:572
165:413 166:571 167:464 168:817 169:128 170:856
171:127 172:4 173:1745 174:591 175:442 176:484
177:667 178:1336 180:1205 181:73 182:803 183:285
184:454 185:1 186:2209 187:1033 188:1191 189:1798
190:5545 192:6028 193:5573 194:4666 195:3626 196:1297
197:126 198:3648 199:4503 200:5813 201:1928 202:8531
203:8642 204:4351 205:2496 206:2775 207:2818 208:4073
209:3618 210:2787 211:1490 212:2048 213:1915 214:892
215:109 216:5107 217:1543 218:547 219:358 220:1233
221:557 222:329 223:334

End of report
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