BGP Routing: 2010-12-19

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, December 25, 2010

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 26 Dec, 2010

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: 345369
Prefixes after maximum aggregation: 155184
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 167258
Total ASes present in the Internet Routing Table: 35574
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 30633
Origin ASes announcing only one prefix: 14903
Transit ASes present in the Internet Routing Table: 4941
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 407
Unregistered ASNs in the Routing Table: 157
Number of 32-bit ASNs allocated by the RIRs: 978
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2393194250
Equivalent to 142 /8s, 165 /16s and 63 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.9
Total number of prefixes smaller than registry allocations: 142197

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

Prefixes being announced by APNIC Region ASes: 82541
Total APNIC prefixes after maximum aggregation: 27779
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79612
Unique aggregates announced from the APNIC address blocks: 35193
APNIC Region origin ASes present in the Internet Routing Table: 4272
APNIC Prefixes per ASN: 18.64
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575982018
Equivalent to 34 /8s, 84 /16s and 201 /24s
Percentage of available APNIC address space announced: 78.0

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 140047
Total ARIN prefixes after maximum aggregation: 72245
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111142
Unique aggregates announced from the ARIN address blocks: 43988
ARIN Region origin ASes present in the Internet Routing Table: 14103
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5391
ARIN Region transit ASes present in the Internet Routing Table: 1443
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 761068681
Equivalent to 45 /8s, 92 /16s and 252 /24s
Percentage of available ARIN address space announced: 63.9

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, 47/8, 48/8, 50/8, 52/8, 54/8,
55/8, 56/8, 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,
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: 83868
Total RIPE prefixes after maximum aggregation: 45906
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 76389
Unique aggregates announced from the RIPE address blocks: 47391
RIPE Region origin ASes present in the Internet Routing Table: 15180
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7708
RIPE Region transit ASes present in the Internet Routing Table: 2403
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 452863701
Equivalent to 26 /8s, 254 /16s and 38 /24s
Percentage of available RIPE address space announced: 75.0

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, 196608-197631
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,

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

Prefixes being announced by LACNIC Region ASes: 31184
Total LACNIC prefixes after maximum aggregation: 7182
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 29948
Unique aggregates announced from the LACNIC address blocks: 15513
LACNIC Region origin ASes present in the Internet Routing Table: 1407
LACNIC Prefixes per ASN: 21.29
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78633036
Equivalent to 4 /8s, 175 /16s and 216 /24s
Percentage of available LACNIC address space announced: 58.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7464
Total AfriNIC prefixes after maximum aggregation: 1950
AfriNIC Deaggregation factor: 3.83
Prefixes being announced from the AfriNIC address blocks: 5749
Unique aggregates announced from the AfriNIC address blocks: 1792
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.22
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21680896
Equivalent to 1 /8s, 74 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 43.1

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

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

ASN No of nets /20 equiv MaxAgg Description
4766 1742 9486 522 Korea Telecom (KIX)
7545 1537 298 75 TPG Internet Pty Ltd
4755 1438 393 148 Videsh Sanchar Nigam Ltd. Aut
17974 1350 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1036 75 494 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
18101 910 116 139 Reliance Infocom Ltd Internet
4808 909 1641 257 CNCGROUP IP network: China169
17908 827 176 60 Tata Communications

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 3727 3855 268 bellsouth.net, inc.
4323 2643 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1440 291 66 AT&T Worldnet Services
7018 1366 5693 881 AT&T WorldNet Services
2386 1309 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1259 2864 75 Cox Communications, Inc.

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
286 945 711 151 KPNQwest Backbone AS
8560 748 86 9 Schlund + Partner AG
9116 521 328 33 Goldenlines main autonomous s
3292 506 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 450 96 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9121 439 1690 29 TTnet Autonomous System
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International

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
8151 1353 2591 369 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1228 933 78 Types of queries are: POCs, o
6503 1195 355 81 AVANTEL, S.A.
7303 838 442 110 Telecom Argentina Stet-France
14420 588 49 88 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 493 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.

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 795 445 10 TEDATA
24863 750 147 40 LINKdotNET AS number
36992 664 283 156 Etisalat MISR
3741 262 986 224 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3727 3855 268 bellsouth.net, inc.
4323 2643 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1742 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1537 298 75 TPG Internet Pty Ltd
6478 1440 291 66 AT&T Worldnet Services
4755 1438 393 148 Videsh Sanchar Nigam Ltd. Aut
7018 1366 5693 881 AT&T WorldNet Services

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

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

ASN No of nets Net Savings Description
4323 2643 2241 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1840 1553 Verizon Global Networks
7545 1537 1462 TPG Internet Pty Ltd
6478 1440 1374 AT&T Worldnet Services
17974 1350 1322 PT TELEKOMUNIKASI INDONESIA
4755 1438 1290 Videsh Sanchar Nigam Ltd. Aut
4766 1742 1220 Korea Telecom (KIX)
11492 1289 1220 Cable One
22773 1259 1184 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
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 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
10.29.244.56/29 286 KPNQwest Backbone AS
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
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS

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

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

Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige

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 /8:24 /9:10 /10:25 /11:71 /12:214
/13:431 /14:760 /15:1373 /16:11530 /17:5762 /18:9514
/19:19210 /20:24690 /21:24710 /22:32487 /23:31694 /24:179919
/25:359 /26:353 /27:201 /28:391 /29:318 /30:669
/31:40 /32:614

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

ASN No of nets Total ann. Description
6389 2302 3727 bellsouth.net, inc.
4323 1428 2643 Time Warner Telecom
6478 1396 1440 AT&T Worldnet Services
11492 1244 1289 Cable One
10620 1236 1344 TVCABLE BOGOTA
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
18566 1047 1066 Covad Communications
6503 978 1195 AVANTEL, S.A.
19262 956 1840 Verizon Global Networks

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

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

1:150 2:28 4:17 5:1 8:325 12:2039
13:5 14:98 15:15 16:3 17:8 20:9
24:1486 27:494 32:144 33:5 34:2 36:1
37:1 38:685 40:101 41:2334 42:1 44:3
46:439 47:5 49:106 50:33 52:12 55:4
56:2 57:41 58:862 59:535 60:392 61:1176
62:1071 63:1947 64:3733 65:2324 66:4100 67:1789
68:1147 69:2950 70:755 71:391 72:1996 73:3
74:2479 75:299 76:328 77:858 78:749 79:452
80:1065 81:802 82:615 83:453 84:653 85:1078
86:519 87:893 88:413 89:1612 90:142 91:3378
92:479 93:1030 94:1141 95:723 96:411 97:247
98:725 99:33 101:15 107:2 108:79 109:847
110:445 111:670 112:307 113:338 114:487 115:709
116:897 117:656 118:620 119:1021 120:198 121:838
122:1576 123:1029 124:1248 125:1208 128:232 129:155
130:172 131:563 132:111 133:20 134:209 135:50
136:212 137:149 138:291 139:126 140:481 141:197
142:353 143:359 144:474 145:53 146:424 147:193
148:613 149:326 150:149 151:230 152:245 153:172
154:3 155:371 156:165 157:341 158:126 159:369
160:316 161:199 162:276 163:164 164:458 165:353
166:471 167:416 168:728 169:154 170:726 171:67
172:2 173:1177 174:481 175:286 176:1 177:2
178:695 180:742 182:421 183:245 184:214 186:856
187:768 188:901 189:1036 190:4291 192:5806 193:4823
194:3530 195:3050 196:1205 197:1 198:3555 199:3702
200:5584 201:1582 202:8414 203:8383 204:4062 205:2342
206:2582 207:2966 208:3878 209:3487 210:2589 211:1340
212:1988 213:1787 214:725 215:62 216:4813 217:1763
218:529 219:405 220:1185 221:447 222:330 223:89

End of report
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Friday, December 24, 2010

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 25 Dec, 2010

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: 345099
Prefixes after maximum aggregation: 155111
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 167241
Total ASes present in the Internet Routing Table: 35573
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 30630
Origin ASes announcing only one prefix: 14910
Transit ASes present in the Internet Routing Table: 4943
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 406
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 974
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 217
Number of addresses announced to Internet: 2392980938
Equivalent to 142 /8s, 161 /16s and 253 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.9
Total number of prefixes smaller than registry allocations: 142190

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

Prefixes being announced by APNIC Region ASes: 82325
Total APNIC prefixes after maximum aggregation: 27759
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79339
Unique aggregates announced from the APNIC address blocks: 35174
APNIC Region origin ASes present in the Internet Routing Table: 4268
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575967170
Equivalent to 34 /8s, 84 /16s and 143 /24s
Percentage of available APNIC address space announced: 78.0

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

Prefixes being announced by ARIN Region ASes: 140039
Total ARIN prefixes after maximum aggregation: 72245
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111135
Unique aggregates announced from the ARIN address blocks: 43990
ARIN Region origin ASes present in the Internet Routing Table: 14105
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5391
ARIN Region transit ASes present in the Internet Routing Table: 1444
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 761070217
Equivalent to 45 /8s, 93 /16s and 2 /24s
Percentage of available ARIN address space announced: 63.9

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

Prefixes being announced by RIPE Region ASes: 83876
Total RIPE prefixes after maximum aggregation: 45898
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 76382
Unique aggregates announced from the RIPE address blocks: 47377
RIPE Region origin ASes present in the Internet Routing Table: 15183
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7712
RIPE Region transit ASes present in the Internet Routing Table: 2406
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 452516565
Equivalent to 26 /8s, 248 /16s and 218 /24s
Percentage of available RIPE address space announced: 74.9

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

Prefixes being announced by LACNIC Region ASes: 31141
Total LACNIC prefixes after maximum aggregation: 7139
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29902
Unique aggregates announced from the LACNIC address blocks: 15516
LACNIC Region origin ASes present in the Internet Routing Table: 1408
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78633996
Equivalent to 4 /8s, 175 /16s and 220 /24s
Percentage of available LACNIC address space announced: 58.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7452
Total AfriNIC prefixes after maximum aggregation: 1947
AfriNIC Deaggregation factor: 3.83
Prefixes being announced from the AfriNIC address blocks: 5732
Unique aggregates announced from the AfriNIC address blocks: 1790
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.21
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21679872
Equivalent to 1 /8s, 74 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 43.1

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

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

ASN No of nets /20 equiv MaxAgg Description
4766 1742 9486 522 Korea Telecom (KIX)
7545 1536 298 74 TPG Internet Pty Ltd
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
17974 1359 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1036 75 494 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
18101 910 116 139 Reliance Infocom Ltd Internet
4808 909 1641 257 CNCGROUP IP network: China169
9829 824 696 31 BSNL National Internet Backbo

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 3727 3855 268 bellsouth.net, inc.
4323 2643 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1440 291 66 AT&T Worldnet Services
7018 1367 5693 882 AT&T WorldNet Services
2386 1310 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1259 2864 75 Cox Communications, Inc.

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
286 944 711 151 KPNQwest Backbone AS
8560 748 86 9 Schlund + Partner AG
9116 521 328 33 Goldenlines main autonomous s
3292 506 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 450 96 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9121 439 1690 29 TTnet Autonomous System
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International

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
8151 1355 2591 369 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1228 933 78 Types of queries are: POCs, o
6503 1195 355 81 AVANTEL, S.A.
7303 838 442 110 Telecom Argentina Stet-France
14420 588 49 88 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 494 216 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.

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 779 445 10 TEDATA
24863 750 147 40 LINKdotNET AS number
36992 664 283 156 Etisalat MISR
3741 262 986 224 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3727 3855 268 bellsouth.net, inc.
4323 2643 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1742 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1536 298 74 TPG Internet Pty Ltd
6478 1440 291 66 AT&T Worldnet Services
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
7018 1367 5693 882 AT&T WorldNet Services

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

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

ASN No of nets Net Savings Description
4323 2643 2241 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1840 1553 Verizon Global Networks
7545 1536 1462 TPG Internet Pty Ltd
6478 1440 1374 AT&T Worldnet Services
17974 1359 1331 PT TELEKOMUNIKASI INDONESIA
4755 1409 1272 Videsh Sanchar Nigam Ltd. Aut
4766 1742 1220 Korea Telecom (KIX)
11492 1289 1220 Cable One
22773 1259 1184 Cox Communications, Inc.

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

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

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 /8:24 /9:10 /10:25 /11:71 /12:214
/13:431 /14:759 /15:1373 /16:11530 /17:5764 /18:9515
/19:19207 /20:24701 /21:24702 /22:32474 /23:31687 /24:179712
/25:357 /26:347 /27:195 /28:385 /29:299 /30:665
/31:39 /32:613

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

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

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

1:150 2:27 4:17 5:1 8:325 12:2041
13:5 14:94 15:15 16:3 17:8 20:9
24:1486 27:494 32:144 33:5 34:2 36:1
37:1 38:685 40:101 41:2331 42:1 44:3
46:439 47:5 49:106 50:33 52:12 55:4
56:2 57:41 58:861 59:517 60:392 61:1124
62:1069 63:1947 64:3733 65:2324 66:4100 67:1789
68:1147 69:2950 70:755 71:391 72:1997 73:3
74:2479 75:300 76:327 77:858 78:749 79:452
80:1065 81:802 82:616 83:452 84:653 85:1077
86:518 87:893 88:413 89:1613 90:142 91:3382
92:480 93:1031 94:1142 95:724 96:411 97:247
98:724 99:33 101:15 107:2 108:79 109:847
110:445 111:670 112:307 113:335 114:474 115:686
116:897 117:653 118:619 119:1014 120:198 121:755
122:1574 123:1029 124:1245 125:1210 128:232 129:155
130:172 131:563 132:111 133:20 134:209 135:50
136:212 137:149 138:291 139:126 140:480 141:197
142:353 143:357 144:477 145:53 146:424 147:193
148:614 149:327 150:149 151:230 152:297 153:172
154:3 155:371 156:165 157:341 158:126 159:368
160:316 161:199 162:276 163:164 164:456 165:353
166:471 167:417 168:728 169:154 170:727 171:67
172:2 173:1177 174:482 175:282 176:1 177:2
178:695 180:741 182:421 183:245 184:213 186:854
187:769 188:900 189:1036 190:4289 192:5810 193:4822
194:3531 195:3047 196:1205 197:1 198:3556 199:3702
200:5585 201:1580 202:8417 203:8372 204:4062 205:2342
206:2582 207:2967 208:3874 209:3486 210:2577 211:1340
212:1988 213:1789 214:723 215:62 216:4808 217:1763
218:531 219:387 220:1186 221:447 222:330 223:89

End of report
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Thursday, December 23, 2010

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Fri 24 Dec, 2010

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: 345089
Prefixes after maximum aggregation: 155087
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 167148
Total ASes present in the Internet Routing Table: 35576
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 30630
Origin ASes announcing only one prefix: 14910
Transit ASes present in the Internet Routing Table: 4946
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 25
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 416
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 973
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 202
Number of addresses announced to Internet: 2392552394
Equivalent to 142 /8s, 155 /16s and 115 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.9
Total number of prefixes smaller than registry allocations: 142201

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

Prefixes being announced by APNIC Region ASes: 82308
Total APNIC prefixes after maximum aggregation: 27722
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79365
Unique aggregates announced from the APNIC address blocks: 35184
APNIC Region origin ASes present in the Internet Routing Table: 4270
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 683
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575610562
Equivalent to 34 /8s, 79 /16s and 30 /24s
Percentage of available APNIC address space announced: 78.0

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

Prefixes being announced by ARIN Region ASes: 139977
Total ARIN prefixes after maximum aggregation: 72220
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111095
Unique aggregates announced from the ARIN address blocks: 43974
ARIN Region origin ASes present in the Internet Routing Table: 14105
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5390
ARIN Region transit ASes present in the Internet Routing Table: 1445
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 761005449
Equivalent to 45 /8s, 92 /16s and 5 /24s
Percentage of available ARIN address space announced: 63.9

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

Prefixes being announced by RIPE Region ASes: 83877
Total RIPE prefixes after maximum aggregation: 45897
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 76408
Unique aggregates announced from the RIPE address blocks: 47344
RIPE Region origin ASes present in the Internet Routing Table: 15181
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7713
RIPE Region transit ASes present in the Internet Routing Table: 2409
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452479957
Equivalent to 26 /8s, 248 /16s and 75 /24s
Percentage of available RIPE address space announced: 74.9

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

Prefixes being announced by LACNIC Region ASes: 31219
Total LACNIC prefixes after maximum aggregation: 7171
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29982
Unique aggregates announced from the LACNIC address blocks: 15501
LACNIC Region origin ASes present in the Internet Routing Table: 1408
LACNIC Prefixes per ASN: 21.29
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78643212
Equivalent to 4 /8s, 176 /16s and 0 /24s
Percentage of available LACNIC address space announced: 58.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7432
Total AfriNIC prefixes after maximum aggregation: 1947
AfriNIC Deaggregation factor: 3.82
Prefixes being announced from the AfriNIC address blocks: 5707
Unique aggregates announced from the AfriNIC address blocks: 1802
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.09
AfriNIC Region origin ASes announcing only one prefix: 145
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21677056
Equivalent to 1 /8s, 74 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 43.1

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

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

ASN No of nets /20 equiv MaxAgg Description
4766 1739 9486 522 Korea Telecom (KIX)
7545 1536 298 74 TPG Internet Pty Ltd
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
17974 1360 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1034 75 492 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
18101 910 116 139 Reliance Infocom Ltd Internet
4808 906 1629 254 CNCGROUP IP network: China169
9829 824 696 31 BSNL National Internet Backbo

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 3725 3855 267 bellsouth.net, inc.
4323 2641 1093 401 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1440 291 66 AT&T Worldnet Services
7018 1368 5693 882 AT&T WorldNet Services
2386 1310 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1259 2864 75 Cox Communications, Inc.

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
286 945 711 151 KPNQwest Backbone AS
8560 748 86 9 Schlund + Partner AG
9116 521 328 33 Goldenlines main autonomous s
3292 506 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 454 96 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9121 439 1690 29 TTnet Autonomous System
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International

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
8151 1354 2591 368 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1228 933 78 Types of queries are: POCs, o
6503 1193 355 81 AVANTEL, S.A.
7303 838 442 110 Telecom Argentina Stet-France
14420 588 49 88 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 494 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.

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 769 445 10 TEDATA
24863 750 147 40 LINKdotNET AS number
36992 664 283 156 Etisalat MISR
3741 262 986 224 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3725 3855 267 bellsouth.net, inc.
4323 2641 1093 401 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1739 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1536 298 74 TPG Internet Pty Ltd
6478 1440 291 66 AT&T Worldnet Services
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
7018 1368 5693 882 AT&T WorldNet Services

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

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

ASN No of nets Net Savings Description
4323 2641 2240 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1840 1553 Verizon Global Networks
7545 1536 1462 TPG Internet Pty Ltd
6478 1440 1374 AT&T Worldnet Services
17974 1360 1332 PT TELEKOMUNIKASI INDONESIA
4755 1409 1272 Videsh Sanchar Nigam Ltd. Aut
11492 1289 1220 Cable One
4766 1739 1217 Korea Telecom (KIX)
22773 1259 1184 Cox Communications, Inc.

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

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

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 /8:24 /9:10 /10:25 /11:71 /12:214
/13:431 /14:759 /15:1372 /16:11529 /17:5761 /18:9511
/19:19194 /20:24677 /21:24706 /22:32461 /23:31666 /24:179656
/25:381 /26:357 /27:205 /28:402 /29:339 /30:668
/31:40 /32:630

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

ASN No of nets Total ann. Description
6389 2300 3725 bellsouth.net, inc.
4323 1426 2641 Time Warner Telecom
6478 1396 1440 AT&T Worldnet Services
11492 1244 1289 Cable One
10620 1236 1344 TVCABLE BOGOTA
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
18566 1047 1066 Covad Communications
6503 977 1193 AVANTEL, S.A.
19262 956 1840 Verizon Global Networks

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

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

1:147 2:27 4:17 5:1 8:324 12:2041
13:5 14:97 15:15 16:3 17:8 20:9
24:1486 27:494 32:144 33:5 34:2 36:1
37:1 38:685 40:101 41:2313 42:1 44:3
46:439 47:5 49:106 50:33 52:12 55:4
56:2 57:41 58:863 59:518 60:392 61:1126
62:1071 63:1947 64:3733 65:2325 66:4101 67:1787
68:1147 69:2941 70:755 71:391 72:1997 73:3
74:2475 75:300 76:327 77:862 78:749 79:452
80:1065 81:802 82:617 83:453 84:653 85:1078
86:525 87:893 88:413 89:1627 90:141 91:3378
92:485 93:1032 94:1140 95:727 96:411 97:247
98:724 99:33 101:15 107:2 108:79 109:838
110:448 111:670 112:309 113:332 114:485 115:686
116:898 117:656 118:613 119:1019 120:198 121:755
122:1576 123:1028 124:1248 125:1210 128:232 129:155
130:172 131:567 132:111 133:20 134:209 135:50
136:212 137:149 138:291 139:126 140:481 141:197
142:353 143:356 144:476 145:53 146:425 147:193
148:614 149:327 150:149 151:230 152:297 153:172
154:3 155:371 156:165 157:339 158:126 159:369
160:316 161:199 162:276 163:164 164:423 165:353
166:471 167:417 168:728 169:154 170:727 171:67
172:2 173:1177 174:481 175:282 176:1 177:2
178:695 180:738 182:421 183:244 184:213 186:843
187:766 188:901 189:1030 190:4278 192:5812 193:4822
194:3532 195:3050 196:1194 197:1 198:3556 199:3701
200:5575 201:1578 202:8420 203:8380 204:4061 205:2340
206:2583 207:2967 208:3875 209:3486 210:2586 211:1338
212:1988 213:1789 214:722 215:62 216:4808 217:1763
218:524 219:390 220:1186 221:446 222:330 223:89

End of report
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Wednesday, December 22, 2010

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Thu 23 Dec, 2010

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: 341789
Prefixes after maximum aggregation: 153000
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 167073
Total ASes present in the Internet Routing Table: 35530
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 30593
Origin ASes announcing only one prefix: 14890
Transit ASes present in the Internet Routing Table: 4937
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 25
Max AS path prepend of ASN (42805) 21
Prefixes from unregistered ASNs in the Routing Table: 421
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 969
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2343567495
Equivalent to 139 /8s, 176 /16s and 0 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.8
Total number of prefixes smaller than registry allocations: 140119

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

Prefixes being announced by APNIC Region ASes: 82284
Total APNIC prefixes after maximum aggregation: 27694
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79318
Unique aggregates announced from the APNIC address blocks: 35193
APNIC Region origin ASes present in the Internet Routing Table: 4267
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575836609
Equivalent to 34 /8s, 82 /16s and 145 /24s
Percentage of available APNIC address space announced: 78.0

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

Prefixes being announced by ARIN Region ASes: 137777
Total ARIN prefixes after maximum aggregation: 70273
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 108876
Unique aggregates announced from the ARIN address blocks: 43913
ARIN Region origin ASes present in the Internet Routing Table: 14077
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1442
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 745185409
Equivalent to 44 /8s, 106 /16s and 160 /24s
Percentage of available ARIN address space announced: 62.6

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

Prefixes being announced by RIPE Region ASes: 82993
Total RIPE prefixes after maximum aggregation: 45863
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75696
Unique aggregates announced from the RIPE address blocks: 47402
RIPE Region origin ASes present in the Internet Routing Table: 15171
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7706
RIPE Region transit ASes present in the Internet Routing Table: 2407
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452349897
Equivalent to 26 /8s, 246 /16s and 79 /24s
Percentage of available RIPE address space announced: 74.9

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

Prefixes being announced by LACNIC Region ASes: 30904
Total LACNIC prefixes after maximum aggregation: 7092
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29689
Unique aggregates announced from the LACNIC address blocks: 15452
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.12
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 246
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78621440
Equivalent to 4 /8s, 175 /16s and 171 /24s
Percentage of available LACNIC address space announced: 58.6

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7551
Total AfriNIC prefixes after maximum aggregation: 1948
AfriNIC Deaggregation factor: 3.88
Prefixes being announced from the AfriNIC address blocks: 5828
Unique aggregates announced from the AfriNIC address blocks: 1796
AfriNIC Region origin ASes present in the Internet Routing Table: 432
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 141
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21662720
Equivalent to 1 /8s, 74 /16s and 140 /24s
Percentage of available AfriNIC address space announced: 43.0

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

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

ASN No of nets /20 equiv MaxAgg Description
4766 1739 9486 522 Korea Telecom (KIX)
7545 1537 298 75 TPG Internet Pty Ltd
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
17974 1356 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1034 75 492 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
18101 910 116 139 Reliance Infocom Ltd Internet
4808 905 1629 254 CNCGROUP IP network: China169
9829 819 693 38 BSNL National Internet Backbo

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 3731 3856 269 bellsouth.net, inc.
4323 2639 1093 399 Time Warner Telecom
19262 1839 4905 286 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1439 291 72 AT&T Worldnet Services
7018 1369 5694 884 AT&T WorldNet Services
2386 1309 569 930 AT&T Data Communications Serv
11492 1287 234 70 Cable One
22773 1259 2864 75 Cox Communications, Inc.

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
286 945 711 151 KPNQwest Backbone AS
9116 542 328 33 Goldenlines main autonomous s
3292 506 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 449 96 133 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9121 439 1690 29 TTnet Autonomous System
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 401 1867 315 UUNET - Commercial IP service

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 1344 250 164 TVCABLE BOGOTA
8151 1241 2591 366 Uninet S.A. de C.V.
28573 1224 933 79 Types of queries are: POCs, o
6503 1188 355 81 AVANTEL, S.A.
7303 835 441 109 Telecom Argentina Stet-France
14420 588 49 88 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 492 216 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.

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 922 445 10 TEDATA
24863 749 147 40 LINKdotNET AS number
36992 664 283 156 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 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 3731 3856 269 bellsouth.net, inc.
4323 2639 1093 399 Time Warner Telecom
19262 1839 4905 286 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1739 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1537 298 75 TPG Internet Pty Ltd
6478 1439 291 72 AT&T Worldnet Services
4755 1409 391 137 Videsh Sanchar Nigam Ltd. Aut
7018 1369 5694 884 AT&T WorldNet Services

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

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

ASN No of nets Net Savings Description
4323 2639 2240 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1839 1553 Verizon Global Networks
7545 1537 1462 TPG Internet Pty Ltd
6478 1439 1367 AT&T Worldnet Services
17974 1356 1328 PT TELEKOMUNIKASI INDONESIA
4755 1409 1272 Videsh Sanchar Nigam Ltd. Aut
4766 1739 1217 Korea Telecom (KIX)
11492 1287 1217 Cable One
22773 1259 1184 Cox Communications, Inc.

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

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

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
--------------------------------

Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<

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 /8:21 /9:10 /10:25 /11:71 /12:214
/13:431 /14:754 /15:1348 /16:11440 /17:5619 /18:9322
/19:18967 /20:24353 /21:24532 /22:32178 /23:31234 /24:178671
/25:364 /26:344 /27:198 /28:215 /29:267 /30:581
/31:39 /32:591

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

ASN No of nets Total ann. Description
6389 2303 3731 bellsouth.net, inc.
4323 1426 2639 Time Warner Telecom
6478 1395 1439 AT&T Worldnet Services
11492 1242 1287 Cable One
10620 1236 1344 TVCABLE BOGOTA
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
18566 1047 1066 Covad Communications
6503 972 1188 AVANTEL, S.A.
19262 956 1839 Verizon Global Networks

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

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

1:147 2:27 4:13 5:1 8:324 12:2040
13:6 14:97 15:15 16:3 17:8 20:9
24:1480 27:495 32:144 33:5 34:2 36:1
37:1 38:684 40:101 41:2517 42:1 44:3
46:419 47:4 49:106 50:33 52:12 55:5
56:2 57:41 58:863 59:518 60:392 61:1127
62:1045 63:1948 64:3717 65:2324 66:4092 67:1785
68:1001 69:2840 70:714 71:391 72:1997 73:1
74:2295 75:291 76:318 77:860 78:748 79:453
80:1064 81:803 82:542 83:453 84:653 85:1079
86:518 87:746 88:413 89:1612 90:132 91:3371
92:483 93:1025 94:1141 95:718 96:411 97:247
98:724 99:33 101:14 107:2 108:79 109:837
110:445 111:671 112:308 113:330 114:485 115:687
116:905 117:656 118:613 119:1022 120:199 121:755
122:1575 123:1027 124:1245 125:1212 128:232 129:155
130:172 131:566 132:111 133:20 134:208 135:50
136:212 137:148 138:291 139:126 140:481 141:197
142:353 143:358 144:476 145:53 146:425 147:181
148:615 149:327 150:149 151:230 152:297 153:172
154:3 155:371 156:165 157:339 158:126 159:367
160:316 161:199 162:277 163:164 164:454 165:334
166:470 167:418 168:727 169:151 170:725 171:67
172:2 173:1146 174:483 175:281 176:1 177:2
178:683 180:738 182:418 183:245 184:209 186:846
187:772 188:897 189:1038 190:4276 192:5813 193:4811
194:3532 195:3053 196:1194 197:1 198:3556 199:3692
200:5542 201:1576 202:8415 203:8390 204:4059 205:2332
206:2577 207:2968 208:3876 209:3485 210:2585 211:1338
212:1916 213:1764 214:728 215:62 216:4801 217:1628
218:525 219:390 220:1186 221:442 222:330 223:88

End of report
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