Routing Table Report 00:00 GMT Wed 05 Jan, 2011
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: 344975
Prefixes after maximum aggregation: 155486
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 167890
Total ASes present in the Internet Routing Table: 35637
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30688
Origin ASes announcing only one prefix: 14934
Transit ASes present in the Internet Routing Table: 4949
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 400
Unregistered ASNs in the Routing Table: 163
Number of 32-bit ASNs allocated by the RIRs: 988
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 215
Number of addresses announced to Internet: 2395003468
Equivalent to 142 /8s, 192 /16s and 218 /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: 87.1
Total number of prefixes smaller than registry allocations: 141704
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82623
Total APNIC prefixes after maximum aggregation: 27800
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79602
Unique aggregates announced from the APNIC address blocks: 35275
APNIC Region origin ASes present in the Internet Routing Table: 4277
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 575904450
Equivalent to 34 /8s, 83 /16s and 154 /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: 140200
Total ARIN prefixes after maximum aggregation: 72345
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111059
Unique aggregates announced from the ARIN address blocks: 44061
ARIN Region origin ASes present in the Internet Routing Table: 14126
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5407
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 777995145
Equivalent to 46 /8s, 95 /16s and 67 /24s
Percentage of available ARIN address space announced: 65.3
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: 83284
Total RIPE prefixes after maximum aggregation: 46014
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75916
Unique aggregates announced from the RIPE address blocks: 47669
RIPE Region origin ASes present in the Internet Routing Table: 15196
RIPE Prefixes per ASN: 5.00
RIPE Region origin ASes announcing only one prefix: 7716
RIPE Region transit ASes present in the Internet Routing Table: 2374
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 453846421
Equivalent to 27 /8s, 13 /16s and 37 /24s
Percentage of available RIPE address space announced: 75.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 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: 31214
Total LACNIC prefixes after maximum aggregation: 7238
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 29989
Unique aggregates announced from the LACNIC address blocks: 15561
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.15
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 78762956
Equivalent to 4 /8s, 177 /16s and 211 /24s
Percentage of available LACNIC address space announced: 58.7
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: 7408
Total AfriNIC prefixes after maximum aggregation: 1969
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 5684
Unique aggregates announced from the AfriNIC address blocks: 1761
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.10
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21655808
Equivalent to 1 /8s, 74 /16s and 113 /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 1747 9483 512 Korea Telecom (KIX)
7545 1541 298 74 TPG Internet Pty Ltd
17974 1414 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1391 632 156 Videsh Sanchar Nigam Ltd. Aut
24560 1058 317 179 Bharti Airtel Ltd.
9583 1040 76 488 Sify Limited
17488 958 159 109 Hathway IP Over Cable Interne
18101 912 116 138 Reliance Infocom Ltd Internet
4808 889 1919 246 CNCGROUP IP network: China169
9829 837 707 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 3727 3855 267 bellsouth.net, inc.
4323 2647 1077 401 Time Warner Telecom
19262 1839 4921 285 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1433 287 114 AT&T Worldnet Services
7018 1367 5660 882 AT&T WorldNet Services
2386 1296 569 931 AT&T Data Communications Serv
11492 1290 234 73 Cable One
22773 1262 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
286 960 711 153 KPNQwest Backbone AS
9116 523 328 32 Goldenlines main autonomous s
3292 503 2010 385 TDC Tele Danmark
6830 502 1763 308 UPC Distribution Services
34984 456 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 397 1865 311 UUNET - Commercial IP service
3320 392 7609 344 Deutsche Telekom AG
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 1345 2609 365 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1208 931 83 Types of queries are: POCs, o
6503 1194 339 77 AVANTEL, S.A.
7303 841 443 112 Telecom Argentina Stet-France
14420 593 50 85 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 493 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 454 33 32 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 768 445 10 TEDATA
24863 749 147 38 LINKdotNET AS number
36992 661 283 154 Etisalat MISR
3741 262 986 224 The Internet Solution
24835 219 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
16637 164 440 89 Johnnic e-Ventures
33776 157 10 27 Starcomms Nigeria Limited
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 267 bellsouth.net, inc.
4323 2647 1077 401 Time Warner Telecom
19262 1839 4921 285 Verizon Global Networks
1785 1788 697 132 AppliedTheory Corporation
4766 1747 9483 512 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1541 298 74 TPG Internet Pty Ltd
6478 1433 287 114 AT&T Worldnet Services
17974 1414 459 28 PT TELEKOMUNIKASI INDONESIA
4755 1391 632 156 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 2647 2246 Time Warner Telecom
1785 1788 1656 AppliedTheory Corporation
19262 1839 1554 Verizon Global Networks
7545 1541 1467 TPG Internet Pty Ltd
17974 1414 1386 PT TELEKOMUNIKASI INDONESIA
6478 1433 1319 AT&T Worldnet Services
4766 1747 1235 Korea Telecom (KIX)
4755 1391 1235 Videsh Sanchar Nigam Ltd. Aut
11492 1290 1217 Cable One
22773 1262 1187 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
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 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
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 /15:1376 /16:11531 /17:5777 /18:9511
/19:19226 /20:24725 /21:24735 /22:32527 /23:31682 /24:179396
/25:359 /26:375 /27:199 /28:375 /29:315 /30:675
/31:40 /32:616
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2303 3727 bellsouth.net, inc.
4323 1433 2647 Time Warner Telecom
6478 1389 1433 AT&T Worldnet Services
11492 1245 1290 Cable One
10620 1236 1344 TVCABLE BOGOTA
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1788 AppliedTheory Corporation
6503 981 1194 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)
----------------------------------------------
1:154 2:34 4:17 5:1 8:326 12:2032
13:5 14:245 15:15 16:3 17:8 20:9
24:1486 27:531 32:137 33:5 34:2 36:1
37:1 38:687 40:101 41:2234 42:1 44:3
46:464 47:5 49:117 50:40 52:12 55:5
56:2 57:41 58:865 59:501 60:385 61:1108
62:1075 63:1942 64:3743 65:2326 66:4116 67:1791
68:1146 69:2952 70:756 71:391 72:1996 73:3
74:2339 75:300 76:329 77:862 78:691 79:460
80:1057 81:803 82:545 83:458 84:653 85:1069
86:524 87:745 88:349 89:1585 90:141 91:3409
92:483 93:1044 94:1169 95:737 96:411 97:247
98:727 99:33 101:17 107:3 108:79 109:853
110:457 111:675 112:309 113:355 114:486 115:636
116:890 117:669 118:625 119:1027 120:199 121:705
122:1574 123:1025 124:1248 125:1214 128:230 129:156
130:171 131:567 132:111 133:19 134:209 135:50
136:212 137:148 138:291 139:123 140:478 141:197
142:355 143:362 144:488 145:53 146:426 147:200
148:614 149:329 150:150 151:230 152:297 153:172
154:3 155:370 156:164 157:340 158:126 159:370
160:315 161:196 162:277 163:164 164:459 165:354
166:472 167:418 168:728 169:154 170:727 171:67
172:2 173:1187 174:495 175:305 176:1 177:2
178:710 180:737 182:383 183:257 184:216 186:883
187:754 188:901 189:1041 190:4280 192:5808 193:4821
194:3541 195:3052 196:1260 197:1 198:3549 199:3701
200:5590 201:1570 202:8403 203:8417 204:4056 205:2328
206:2582 207:2985 208:3870 209:3489 210:2598 211:1342
212:1920 213:1773 214:733 215:62 216:4817 217:1631
218:528 219:381 220:1197 221:446 222:324 223:89
End of report
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