Routing Table Report 00:00 GMT Fri 13 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: 409118
Prefixes after maximum aggregation: 173552
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 190078
Total ASes present in the Internet Routing Table: 40706
Prefixes per ASN: 10.05
Origin-only ASes present in the Internet Routing Table: 33025
Origin ASes announcing only one prefix: 15629
Transit ASes present in the Internet Routing Table: 5469
Transit-only ASes present in the Internet Routing Table: 145
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: 6003
Unregistered ASNs in the Routing Table: 158
Number of 32-bit ASNs allocated by the RIRs: 2556
Number of 32-bit ASNs visible in the Routing Table: 2212
Prefixes from 32-bit ASNs in the Routing Table: 5534
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2358188373
Equivalent to 140 /8s, 143 /16s and 25 /24s
Percentage of available address space announced: 63.6
Percentage of allocated address space announced: 63.6
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: 172992
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97470
Total APNIC prefixes after maximum aggregation: 31141
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94000
Unique aggregates announced from the APNIC address blocks: 37906
APNIC Region origin ASes present in the Internet Routing Table: 4662
APNIC Prefixes per ASN: 20.16
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 747
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: 177
Number of APNIC addresses announced to Internet: 625785088
Equivalent to 37 /8s, 76 /16s and 185 /24s
Percentage of available APNIC address space announced: 79.4
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: 152465
Total ARIN prefixes after maximum aggregation: 78295
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123515
Unique aggregates announced from the ARIN address blocks: 47164
ARIN Region origin ASes present in the Internet Routing Table: 15050
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5729
ARIN Region transit ASes present in the Internet Routing Table: 1573
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 668440320
Equivalent to 39 /8s, 215 /16s and 151 /24s
Percentage of available ARIN address space announced: 53.1
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: 103311
Total RIPE prefixes after maximum aggregation: 53704
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 94401
Unique aggregates announced from the RIPE address blocks: 55906
RIPE Region origin ASes present in the Internet Routing Table: 16484
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 8038
RIPE Region transit ASes present in the Internet Routing Table: 2636
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: 1495
Number of RIPE addresses announced to Internet: 486915468
Equivalent to 29 /8s, 5 /16s and 189 /24s
Percentage of available RIPE address space announced: 78.4
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: 41058
Total LACNIC prefixes after maximum aggregation: 8201
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 40855
Unique aggregates announced from the LACNIC address blocks: 20065
LACNIC Region origin ASes present in the Internet Routing Table: 1580
LACNIC Prefixes per ASN: 25.86
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: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 518
Number of LACNIC addresses announced to Internet: 99152392
Equivalent to 5 /8s, 232 /16s and 242 /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: 9033
Total AfriNIC prefixes after maximum aggregation: 2142
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7087
Unique aggregates announced from the AfriNIC address blocks: 2166
AfriNIC Region origin ASes present in the Internet Routing Table: 534
AfriNIC Prefixes per ASN: 13.27
AfriNIC Region origin ASes announcing only one prefix: 168
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: 31678208
Equivalent to 1 /8s, 227 /16s and 95 /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 1802 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1659 301 89 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 1173 1062 11 Vietel Corporation
24560 1023 385 167 Bharti Airtel Ltd.
4808 1006 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 3431 3807 195 bellsouth.net, inc.
7029 3421 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1897 680 128 AppliedTheory Corporation
20115 1643 1565 619 Charter Communications
4323 1591 1043 377 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1445 263 757 Mediacom Communications Corp
7018 1284 9791 833 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 1766 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 655 658 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 1811 327 162 TVCABLE BOGOTA
28573 1775 1107 59 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1517 2999 323 Uninet S.A. de C.V.
7303 1353 827 189 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 584 326 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
3741 265 921 223 The Internet Solution
33776 206 12 24 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
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 3431 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 1897 680 128 AppliedTheory Corporation
10620 1811 327 162 TVCABLE BOGOTA
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1775 1107 59 Types of queries are: POCs, o
8402 1766 544 16 Corbina telecom
7545 1659 301 89 TPG Internet Pty Ltd
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 1897 1769 AppliedTheory Corporation
8402 1766 1750 Corbina telecom
17974 1802 1739 PT TELEKOMUNIKASI INDONESIA
28573 1775 1716 Types of queries are: POCs, o
10620 1811 1649 TVCABLE BOGOTA
7545 1659 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
37.230.0.0/19 9063 SaarGate Internet Service Pro
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 /8:20 /9:12 /10:28 /11:81 /12:235
/13:460 /14:838 /15:1520 /16:12354 /17:6540 /18:10889
/19:21165 /20:30023 /21:30254 /22:40906 /23:38262 /24:213934
/25:69 /26:76 /27:107 /28:267 /29:99 /30:496
/31:20 /32:463
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3064 3421 Windstream Communications Inc
6389 2149 3431 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1743 1766 Corbina telecom
10620 1703 1811 TVCABLE BOGOTA
30036 1391 1445 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1112 1304 TEDATA
1785 1067 1897 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:727 4:18 6:3 8:400 12:1993
13:1 14:606 15:12 16:3 17:7 20:8
23:158 24:1776 27:1270 31:1002 32:119 33:2
34:2 36:8 37:343 38:797 39:4 40:120
41:3163 42:135 44:3 46:1468 47:3 49:386
50:539 52:13 54:7 55:8 56:3 57:39
58:966 59:518 60:280 61:1277 62:991 63:2009
64:4183 65:2254 66:4521 67:2054 68:1334 69:3270
70:954 71:472 72:1849 73:1 74:2653 75:509
76:329 77:966 78:1008 79:505 80:1209 81:909
82:674 83:550 84:492 85:1209 86:431 87:931
88:354 89:1642 90:298 91:4729 92:524 93:1415
94:1475 95:1143 96:363 97:319 98:899 99:37
100:7 101:170 103:973 106:105 107:185 108:227
109:1311 110:764 111:918 112:451 113:593 114:629
115:871 116:906 117:724 118:917 119:1224 120:353
121:830 122:1667 123:1110 124:1376 125:1265 128:557
129:194 130:254 131:600 132:173 133:21 134:247
135:62 136:212 137:177 138:354 139:159 140:490
141:244 142:389 143:410 144:519 145:69 146:489
147:287 148:800 149:301 150:160 151:176 152:464
153:172 154:7 155:446 156:215 157:381 158:177
159:522 160:341 161:259 162:352 163:190 164:572
165:411 166:571 167:464 168:814 169:128 170:854
171:127 172:4 173:1743 174:590 175:440 176:484
177:655 178:1330 180:1198 181:73 182:801 183:269
184:453 185:1 186:2191 187:1014 188:1189 189:1793
190:5504 192:6030 193:5569 194:4656 195:3623 196:1291
197:123 198:3647 199:4497 200:5806 201:1928 202:8493
203:8633 204:4350 205:2483 206:2775 207:2816 208:4069
209:3615 210:2778 211:1489 212:2047 213:1912 214:890
215:109 216:5107 217:1533 218:547 219:358 220:1232
221:557 222:330 223:334
End of report
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