Routing Table Report 00:00 GMT Wed 27 Oct, 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: 337997
Prefixes after maximum aggregation: 152722
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 164662
Total ASes present in the Internet Routing Table: 35115
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 30300
Origin ASes announcing only one prefix: 14746
Transit ASes present in the Internet Routing Table: 4815
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 359
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 840
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 65
Prefixes being announced from unallocated address space: 211
Number of addresses announced to Internet: 2325838143
Equivalent to 138 /8s, 161 /16s and 121 /24s
Percentage of available address space announced: 62.8
Percentage of allocated address space announced: 66.4
Percentage of available address space allocated: 94.6
Percentage of address space in use by end-sites: 85.6
Total number of prefixes smaller than registry allocations: 138680
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 80844
Total APNIC prefixes after maximum aggregation: 27265
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 77860
Unique aggregates announced from the APNIC address blocks: 34629
APNIC Region origin ASes present in the Internet Routing Table: 4206
APNIC Prefixes per ASN: 18.51
APNIC Region origin ASes announcing only one prefix: 1190
APNIC Region transit ASes present in the Internet Routing Table: 663
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 560514497
Equivalent to 33 /8s, 104 /16s and 197 /24s
Percentage of available APNIC address space announced: 75.9
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: 138553
Total ARIN prefixes after maximum aggregation: 71318
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 109664
Unique aggregates announced from the ARIN address blocks: 43468
ARIN Region origin ASes present in the Internet Routing Table: 13983
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5344
ARIN Region transit ASes present in the Internet Routing Table: 1430
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 738257665
Equivalent to 44 /8s, 0 /16s and 235 /24s
Percentage of available ARIN address space announced: 62.9
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, 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, 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, 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: 80567
Total RIPE prefixes after maximum aggregation: 44938
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 73286
Unique aggregates announced from the RIPE address blocks: 46284
RIPE Region origin ASes present in the Internet Routing Table: 14962
RIPE Prefixes per ASN: 4.90
RIPE Region origin ASes announcing only one prefix: 7657
RIPE Region transit ASes present in the Internet Routing Table: 2332
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 442875751
Equivalent to 26 /8s, 101 /16s and 191 /24s
Percentage of available RIPE address space announced: 77.6
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, 25/8, 31/8, 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: 30232
Total LACNIC prefixes after maximum aggregation: 7190
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 28919
Unique aggregates announced from the LACNIC address blocks: 15298
LACNIC Region origin ASes present in the Internet Routing Table: 1373
LACNIC Prefixes per ASN: 21.06
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 238
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 76711560
Equivalent to 4 /8s, 146 /16s and 134 /24s
Percentage of available LACNIC address space announced: 57.2
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: 7555
Total AfriNIC prefixes after maximum aggregation: 1889
AfriNIC Deaggregation factor: 4.00
Prefixes being announced from the AfriNIC address blocks: 5863
Unique aggregates announced from the AfriNIC address blocks: 1696
AfriNIC Region origin ASes present in the Internet Routing Table: 413
AfriNIC Prefixes per ASN: 14.20
AfriNIC Region origin ASes announcing only one prefix: 127
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 20921856
Equivalent to 1 /8s, 63 /16s and 62 /24s
Percentage of available AfriNIC address space announced: 62.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1728 9453 509 Korea Telecom (KIX)
7545 1416 299 78 TPG Internet Pty Ltd
4755 1375 382 159 Videsh Sanchar Nigam Ltd. Aut
17488 1364 156 121 Hathway IP Over Cable Interne
17974 1270 303 78 PT TELEKOMUNIKASI INDONESIA
24560 1053 309 173 Bharti Airtel Ltd.
9583 1031 76 493 Sify Limited
4808 938 1670 258 CNCGROUP IP network: China169
18101 894 116 134 Reliance Infocom Ltd Internet
9829 827 694 27 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 3762 3667 280 bellsouth.net, inc.
4323 2618 1119 393 Time Warner Telecom
1785 1798 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
20115 1550 1530 646 Charter Communications
7018 1442 9828 926 AT&T WorldNet Services
6478 1390 279 92 AT&T Worldnet Services
2386 1317 556 932 AT&T Data Communications Serv
11492 1237 231 74 Cable One
22773 1215 2859 62 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
286 862 711 140 KPNQwest Backbone AS
9116 543 328 34 Goldenlines main autonomous s
3292 494 2027 390 TDC Tele Danmark
8866 421 133 25 Bulgarian Telecommunication C
8551 405 356 39 Bezeq International
702 403 1868 317 UUNET - Commercial IP service
34984 381 91 188 Tellcom Iletisim Hizmetleri
3301 379 1688 335 TeliaNet Sweden
3320 376 7332 329 Deutsche Telekom AG
12479 364 576 5 Uni2 Autonomous System
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 1340 2579 367 Uninet S.A. de C.V.
10620 1330 248 155 TVCABLE BOGOTA
28573 1205 928 84 Types of queries are: POCs, o
7303 832 441 108 Telecom Argentina Stet-France
6503 794 223 259 AVANTEL, S.A.
22047 563 310 15 Types of queries are: POCs, o
14420 546 39 77 Types of queries are: POCs, o
3816 486 210 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 448 32 27 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 1085 445 10 TEDATA
24863 743 147 39 LINKdotNET AS number
36992 644 278 160 Etisalat MISR
3741 266 877 229 The Internet Solution
24835 208 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 203 19 11 Ci Telecom Autonomous system
2018 197 277 64 TENET-1
33776 196 12 14 Starcomms Nigeria Limited
16637 156 440 94 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 3762 3667 280 bellsouth.net, inc.
4323 2618 1119 393 Time Warner Telecom
1785 1798 698 130 AppliedTheory Corporation
19262 1778 4833 280 Verizon Global Networks
4766 1728 9453 509 Korea Telecom (KIX)
20115 1550 1530 646 Charter Communications
7018 1442 9828 926 AT&T WorldNet Services
7545 1416 299 78 TPG Internet Pty Ltd
6478 1390 279 92 AT&T Worldnet Services
4755 1375 382 159 Videsh Sanchar Nigam Ltd. Aut
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 2618 2225 Time Warner Telecom
1785 1798 1668 AppliedTheory Corporation
19262 1778 1498 Verizon Global Networks
7545 1416 1338 TPG Internet Pty Ltd
6478 1390 1298 AT&T Worldnet Services
17488 1364 1243 Hathway IP Over Cable Interne
4766 1728 1219 Korea Telecom (KIX)
4755 1375 1216 Videsh Sanchar Nigam Ltd. Aut
17974 1270 1192 PT TELEKOMUNIKASI INDONESIA
10620 1330 1175 TVCABLE BOGOTA
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 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
10.29.245.30/32 286 KPNQwest Backbone AS
10.29.245.50/32 286 KPNQwest Backbone AS
10.29.245.51/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
36.0.0.0/8 237 Merit Network
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<<
42.0.0.0/8 237 Merit Network
46.21.16.0/20 44160 Emmequadro SRL
46.133.0.0/16 21497 UMC Autonomous System
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 /8:22 /9:10 /10:25 /11:69 /12:207
/13:420 /14:746 /15:1347 /16:11389 /17:5615 /18:9480
/19:18907 /20:24245 /21:24103 /22:31673 /23:30935 /24:175710
/25:384 /26:430 /27:212 /28:383 /29:289 /30:642
/31:14 /32:740
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2326 3762 bellsouth.net, inc.
4323 1405 2618 Time Warner Telecom
6478 1352 1390 AT&T Worldnet Services
10620 1222 1330 TVCABLE BOGOTA
11492 1194 1237 Cable One
1785 1078 1798 AppliedTheory Corporation
18566 1069 1088 Covad Communications
7011 1059 1160 Citizens Utilities
8452 990 1085 TEDATA
19262 903 1778 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:91 2:12 4:17 8:317 12:2000 13:8
14:45 15:18 16:3 17:9 20:9 24:1407
27:382 31:1 32:146 33:11 38:697 40:101
41:2595 44:3 46:183 47:10 49:4 50:3
52:12 55:5 56:2 57:40 58:837 59:501
60:480 61:1118 62:1029 63:1969 64:3761 65:2349
66:4092 67:1847 68:1148 69:2871 70:756 71:378
72:1949 73:2 74:2349 75:296 76:326 77:889
78:682 79:454 80:1075 81:810 82:530 83:465
84:706 85:1054 86:479 87:727 88:336 89:1591
90:109 91:3147 92:442 93:1011 94:1136 95:694
96:395 97:222 98:642 99:32 101:3 108:64
109:739 110:438 111:619 112:304 113:306 114:481
115:605 116:1130 117:659 118:542 119:979 120:161
121:715 122:1609 123:949 124:1248 125:1274 128:229
129:154 130:168 131:566 132:275 133:20 134:209
135:46 136:211 137:139 138:281 139:127 140:487
141:198 142:349 143:365 144:497 145:56 146:431
147:177 148:621 149:308 150:146 151:231 152:293
153:175 154:3 155:370 156:165 157:341 158:112
159:361 160:312 161:199 162:274 163:166 164:424
165:349 166:471 167:423 168:682 169:154 170:718
171:61 172:2 173:1051 174:485 175:242 176:1
177:1 178:551 180:682 181:1 182:253 183:239
184:141 186:743 187:548 188:857 189:810 190:4172
192:5800 193:4787 194:3494 195:2975 196:1193 198:3554
199:3638 200:5360 201:1587 202:8318 203:8273 204:4017
205:2328 206:2583 207:3028 208:3913 209:3471 210:2573
211:1304 212:1884 213:1784 214:683 215:66 216:4790
217:1567 218:531 219:402 220:1186 221:431 222:367
223:58
End of report