Routing Table Report 00:00 GMT Wed 22 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: 343847
Prefixes after maximum aggregation: 154883
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166760
Total ASes present in the Internet Routing Table: 35537
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30585
Origin ASes announcing only one prefix: 14891
Transit ASes present in the Internet Routing Table: 4952
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 (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 412
Unregistered ASNs in the Routing Table: 157
Number of 32-bit ASNs allocated by the RIRs: 965
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 205
Number of addresses announced to Internet: 2342362507
Equivalent to 139 /8s, 157 /16s and 157 /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: 141588
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82097
Total APNIC prefixes after maximum aggregation: 27665
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79110
Unique aggregates announced from the APNIC address blocks: 35078
APNIC Region origin ASes present in the Internet Routing Table: 4260
APNIC Prefixes per ASN: 18.57
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 670
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575812290
Equivalent to 34 /8s, 82 /16s and 50 /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: 139962
Total ARIN prefixes after maximum aggregation: 72223
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 110901
Unique aggregates announced from the ARIN address blocks: 43890
ARIN Region origin ASes present in the Internet Routing Table: 14091
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5381
ARIN Region transit ASes present in the Internet Routing Table: 1446
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 745209993
Equivalent to 44 /8s, 107 /16s and 0 /24s
Percentage of available ARIN address space announced: 62.6
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: 83018
Total RIPE prefixes after maximum aggregation: 45861
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75711
Unique aggregates announced from the RIPE address blocks: 47274
RIPE Region origin ASes present in the Internet Routing Table: 15175
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7714
RIPE Region transit ASes present in the Internet Routing Table: 2418
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 452198869
Equivalent to 26 /8s, 244 /16s and 1 /24s
Percentage of available RIPE address space announced: 74.9
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: 31068
Total LACNIC prefixes after maximum aggregation: 7129
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29840
Unique aggregates announced from the LACNIC address blocks: 15458
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 78617292
Equivalent to 4 /8s, 175 /16s and 154 /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: 7430
Total AfriNIC prefixes after maximum aggregation: 1883
AfriNIC Deaggregation factor: 3.95
Prefixes being announced from the AfriNIC address blocks: 5905
Unique aggregates announced from the AfriNIC address blocks: 1798
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 141
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: 21651712
Equivalent to 1 /8s, 74 /16s and 97 /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 1536 298 74 TPG Internet Pty Ltd
4755 1410 391 136 Videsh Sanchar Nigam Ltd. Aut
17974 1348 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1035 75 492 Sify Limited
17488 969 157 111 Hathway IP Over Cable Interne
18101 911 116 139 Reliance Infocom Ltd Internet
4808 908 1629 254 CNCGROUP IP network: China169
9829 822 696 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 3732 3856 270 bellsouth.net, inc.
4323 2641 1093 399 Time Warner Telecom
19262 1839 4905 286 Verizon Global Networks
1785 1790 697 134 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1444 292 44 AT&T Worldnet Services
7018 1370 5694 884 AT&T WorldNet Services
2386 1309 569 930 AT&T Data Communications Serv
11492 1287 234 70 Cable One
22773 1258 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
286 953 711 151 KPNQwest Backbone AS
9116 542 328 33 Goldenlines main autonomous s
3292 504 2010 384 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 449 96 133 Tellcom Iletisim Hizmetleri
8866 441 137 24 Bulgarian Telecommunication C
9121 438 1690 29 TTnet Autonomous System
9198 417 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 403 1867 317 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
8151 1358 2593 366 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1225 933 79 Types of queries are: POCs, o
6503 1189 355 81 AVANTEL, S.A.
7303 833 441 108 Telecom Argentina Stet-France
14420 587 49 87 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 495 216 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 1008 445 10 TEDATA
24863 721 147 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
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 Johnnic e-Ventures
36874 137 24 6 Cybersmart
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 3732 3856 270 bellsouth.net, inc.
4323 2641 1093 399 Time Warner Telecom
19262 1839 4905 286 Verizon Global Networks
1785 1790 697 134 AppliedTheory Corporation
4766 1739 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1536 298 74 TPG Internet Pty Ltd
6478 1444 292 44 AT&T Worldnet Services
4755 1410 391 136 Videsh Sanchar Nigam Ltd. Aut
7018 1370 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 2641 2242 Time Warner Telecom
1785 1790 1656 AppliedTheory Corporation
19262 1839 1553 Verizon Global Networks
7545 1536 1462 TPG Internet Pty Ltd
6478 1444 1400 AT&T Worldnet Services
17974 1348 1320 PT TELEKOMUNIKASI INDONESIA
4755 1410 1274 Videsh Sanchar Nigam Ltd. Aut
4766 1739 1217 Korea Telecom (KIX)
11492 1287 1217 Cable One
22773 1258 1183 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
37.1.0.0/21 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 /14:759 /15:1373 /16:11517 /17:5755 /18:9510
/19:19180 /20:24661 /21:24641 /22:32281 /23:31494 /24:178911
/25:368 /26:376 /27:205 /28:386 /29:309 /30:685
/31:39 /32:625
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3732 bellsouth.net, inc.
4323 1427 2641 Time Warner Telecom
6478 1400 1444 AT&T Worldnet Services
11492 1242 1287 Cable One
10620 1236 1344 TVCABLE BOGOTA
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1063 1790 AppliedTheory Corporation
6503 973 1189 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)
----------------------------------------------
1:145 2:26 4:17 5:1 8:321 12:2037
13:6 14:97 15:15 16:3 17:8 20:9
24:1481 27:493 32:144 33:5 34:2 36:1
37:1 38:685 40:101 41:2619 42:1 44:3
46:413 47:4 49:102 50:33 52:12 55:4
56:2 57:41 58:863 59:514 60:392 61:1114
62:1069 63:1947 64:3734 65:2326 66:4102 67:1787
68:1149 69:2926 70:754 71:391 72:1999 73:3
74:2335 75:300 76:326 77:862 78:751 79:453
80:1072 81:805 82:541 83:455 84:653 85:1078
86:519 87:744 88:413 89:1612 90:132 91:3363
92:481 93:1021 94:1148 95:717 96:410 97:247
98:721 99:33 101:13 107:2 108:77 109:831
110:444 111:669 112:309 113:326 114:484 115:662
116:898 117:653 118:609 119:1012 120:199 121:749
122:1574 123:1028 124:1228 125:1212 128:232 129:155
130:172 131:565 132:111 133:20 134:207 135:50
136:212 137:149 138:291 139:126 140:480 141:197
142:353 143:357 144:489 145:53 146:425 147:191
148:615 149:327 150:152 151:230 152:296 153:170
154:3 155:346 156:165 157:339 158:126 159:367
160:316 161:199 162:277 163:164 164:436 165:353
166:470 167:418 168:727 169:154 170:726 171:67
172:2 173:1160 174:482 175:281 176:1 177:2
178:683 180:736 182:418 183:233 184:208 186:848
187:775 188:895 189:1039 190:4273 192:5794 193:4820
194:3538 195:3054 196:1117 197:1 198:3531 199:3695
200:5539 201:1581 202:8384 203:8382 204:4058 205:2331
206:2574 207:2968 208:3869 209:3488 210:2570 211:1337
212:1948 213:1763 214:735 215:62 216:4802 217:1627
218:524 219:390 220:1184 221:442 222:330 223:86
End of report
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