Routing Table Report 00:00 GMT Fri 28 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: 345905
Prefixes after maximum aggregation: 156277
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169191
Total ASes present in the Internet Routing Table: 35722
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30801
Origin ASes announcing only one prefix: 14895
Transit ASes present in the Internet Routing Table: 4921
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 27
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 398
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1043
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 221
Number of addresses announced to Internet: 2346097023
Equivalent to 139 /8s, 214 /16s and 153 /24s
Percentage of available address space announced: 63.3
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 141547
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84039
Total APNIC prefixes after maximum aggregation: 28019
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 80948
Unique aggregates announced from the APNIC address blocks: 35546
APNIC Region origin ASes present in the Internet Routing Table: 4296
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1225
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 584315330
Equivalent to 34 /8s, 211 /16s and 241 /24s
Percentage of available APNIC address space announced: 79.2
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: 141194
Total ARIN prefixes after maximum aggregation: 72733
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111765
Unique aggregates announced from the ARIN address blocks: 44351
ARIN Region origin ASes present in the Internet Routing Table: 14169
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5387
ARIN Region transit ASes present in the Internet Routing Table: 1462
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751626377
Equivalent to 44 /8s, 204 /16s and 232 /24s
Percentage of available ARIN address space announced: 63.1
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, 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: 84079
Total RIPE prefixes after maximum aggregation: 46434
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76744
Unique aggregates announced from the RIPE address blocks: 48245
RIPE Region origin ASes present in the Internet Routing Table: 15254
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7730
RIPE Region transit ASes present in the Internet Routing Table: 2378
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 456971017
Equivalent to 27 /8s, 60 /16s and 211 /24s
Percentage of available RIPE address space announced: 75.7
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31646
Total LACNIC prefixes after maximum aggregation: 7255
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30418
Unique aggregates announced from the LACNIC address blocks: 15798
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.36
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 80209548
Equivalent to 4 /8s, 199 /16s and 230 /24s
Percentage of available LACNIC address space announced: 59.8
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: 4683
Total AfriNIC prefixes after maximum aggregation: 1716
AfriNIC Deaggregation factor: 2.73
Prefixes being announced from the AfriNIC address blocks: 3492
Unique aggregates announced from the AfriNIC address blocks: 1595
AfriNIC Region origin ASes present in the Internet Routing Table: 405
AfriNIC Prefixes per ASN: 8.62
AfriNIC Region origin ASes announcing only one prefix: 121
AfriNIC Region transit ASes present in the Internet Routing Table: 92
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 17864960
Equivalent to 1 /8s, 16 /16s and 153 /24s
Percentage of available AfriNIC address space announced: 35.5
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 1759 9484 515 Korea Telecom (KIX)
7545 1577 299 78 TPG Internet Pty Ltd
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 965 162 103 Hathway IP Over Cable Interne
18101 920 116 140 Reliance Infocom Ltd Internet
4808 919 1970 260 CNCGROUP IP network: China169
9829 880 746 42 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 3709 3855 265 bellsouth.net, inc.
4323 2630 1109 404 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
20115 1568 1533 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
7018 1365 6682 881 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1270 235 71 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
286 976 710 153 KPNQwest Backbone AS
9116 522 328 32 Goldenlines main autonomous s
6830 515 1764 319 UPC Distribution Services
3292 504 2011 389 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 458 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
12479 413 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
3320 402 7618 351 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
10620 1357 252 165 TVCABLE BOGOTA
8151 1336 2622 360 Uninet S.A. de C.V.
28573 1247 961 82 Types of queries are: POCs, o
6503 1149 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 611 54 88 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 514 220 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 460 53 48 Telconet 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 165 440 89 Johnnic e-Ventures
36874 139 24 6 Cybersmart
29975 131 475 17 Vodacom
37061 108 9 2 One Communications Ltd
37054 84 5 21 Data Telecom Service
20928 83 32 2 Noor Advanced Technologies AS
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 3709 3855 265 bellsouth.net, inc.
4323 2630 1109 404 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1577 299 78 TPG Internet Pty Ltd
20115 1568 1533 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1391 467 27 PT TELEKOMUNIKASI INDONESIA
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 2630 2226 Time Warner Telecom
1785 1788 1654 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1577 1499 TPG Internet Pty Ltd
6478 1474 1402 AT&T Worldnet Services
17974 1391 1364 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1401 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1270 1199 Cable One
22773 1274 1197 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 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
10.29.244.56/29 286 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
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 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
41.57.192.0/18 22750 BCSNET
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>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 /8:20 /9:10 /10:26 /11:71 /12:215
/13:439 /14:769 /15:1384 /16:11577 /17:5809 /18:9534
/19:19425 /20:24860 /21:24878 /22:32602 /23:31587 /24:179689
/25:364 /26:348 /27:200 /28:378 /29:308 /30:712
/31:47 /32:653
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1428 1474 AT&T Worldnet Services
4323 1418 2630 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1092 1111 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1788 AppliedTheory Corporation
19262 954 1841 Verizon Global Networks
6503 934 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:45 4:17 5:1 8:333 12:2034
13:1 14:377 15:15 16:3 17:8 20:9
23:1 24:1491 27:551 32:128 33:5 34:2
36:1 37:1 38:693 40:101 41:1595 42:1
44:3 46:513 47:5 49:143 50:74 52:12
55:6 56:2 57:41 58:870 59:485 60:391
61:1135 62:815 63:1932 64:3776 65:2331 66:4090
67:1788 68:1153 69:2972 70:758 71:397 72:2036
73:3 74:2355 75:293 76:337 77:864 78:709
79:446 80:1029 81:776 82:517 83:480 84:474
85:1069 86:535 87:756 88:358 89:1616 90:159
91:3439 92:494 93:1047 94:1173 95:790 96:409
97:249 98:759 99:33 101:25 107:3 108:81
109:875 110:468 111:695 112:312 113:355 114:497
115:633 116:900 117:677 118:646 119:1010 120:243
121:704 122:1602 123:1050 124:1286 125:1213 128:248
129:160 130:174 131:569 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:133 140:488
141:198 142:365 143:380 144:489 145:51 146:426
147:204 148:626 149:273 150:153 151:231 152:303
153:175 154:3 155:346 156:174 157:342 158:128
159:377 160:314 161:203 162:277 163:118 164:485
165:354 166:481 167:422 168:749 169:152 170:747
171:66 172:1 173:1274 174:521 175:312 176:1
177:4 178:763 180:761 182:401 183:251 184:239
186:965 187:789 188:901 189:1020 190:4441 192:5820
193:4823 194:3512 195:3062 196:1025 197:2 198:3566
199:3758 200:5587 201:1581 202:8449 203:8450 204:4093
205:2351 206:2599 207:2969 208:3902 209:3478 210:2648
211:1337 212:1900 213:1656 214:751 215:62 216:4851
217:1563 218:551 219:375 220:1201 221:449 222:390
223:92
End of report
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