Routing Table Report 00:00 GMT Sun 20 Feb, 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: 352036
Prefixes after maximum aggregation: 158019
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171503
Total ASes present in the Internet Routing Table: 35910
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31066
Origin ASes announcing only one prefix: 14916
Transit ASes present in the Internet Routing Table: 4844
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 419
Unregistered ASNs in the Routing Table: 170
Number of 32-bit ASNs allocated by the RIRs: 1133
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2396685255
Equivalent to 142 /8s, 218 /16s and 131 /24s
Percentage of available address space announced: 64.7
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 145649
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84297
Total APNIC prefixes after maximum aggregation: 28268
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81239
Unique aggregates announced from the APNIC address blocks: 35913
APNIC Region origin ASes present in the Internet Routing Table: 4317
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 669
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 590040258
Equivalent to 35 /8s, 43 /16s and 76 /24s
Percentage of available APNIC address space announced: 74.8
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, 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: 142732
Total ARIN prefixes after maximum aggregation: 73477
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113232
Unique aggregates announced from the ARIN address blocks: 44896
ARIN Region origin ASes present in the Internet Routing Table: 14203
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5379
ARIN Region transit ASes present in the Internet Routing Table: 1442
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787405977
Equivalent to 46 /8s, 238 /16s and 220 /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, 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: 85563
Total RIPE prefixes after maximum aggregation: 46978
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 78115
Unique aggregates announced from the RIPE address blocks: 49056
RIPE Region origin ASes present in the Internet Routing Table: 15361
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7750
RIPE Region transit ASes present in the Internet Routing Table: 2320
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 460467525
Equivalent to 27 /8s, 114 /16s and 45 /24s
Percentage of available RIPE address space announced: 74.2
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: 31760
Total LACNIC prefixes after maximum aggregation: 7362
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30536
Unique aggregates announced from the LACNIC address blocks: 15935
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.40
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 256
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 80812172
Equivalent to 4 /8s, 209 /16s and 24 /24s
Percentage of available LACNIC address space announced: 53.5
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: 7418
Total AfriNIC prefixes after maximum aggregation: 1820
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 5811
Unique aggregates announced from the AfriNIC address blocks: 1789
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 130
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21843456
Equivalent to 1 /8s, 77 /16s and 78 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1837 9490 573 Korea Telecom (KIX)
7545 1610 302 86 TPG Internet Pty Ltd
4755 1424 633 162 Videsh Sanchar Nigam Ltd. Aut
17974 1404 467 30 PT TELEKOMUNIKASI INDONESIA
24560 1113 323 182 Bharti Airtel Ltd.
9583 1044 77 488 Sify Limited
4808 996 2078 285 CNCGROUP IP network: China169
17488 965 162 103 Hathway IP Over Cable Interne
18101 930 117 141 Reliance Infocom Ltd Internet
9829 897 763 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 3694 3855 261 bellsouth.net, inc.
4323 2625 1125 406 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
1785 1787 697 131 AppliedTheory Corporation
20115 1577 1537 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
7018 1375 6715 890 AT&T WorldNet Services
2386 1300 554 937 AT&T Data Communications Serv
11492 1280 236 73 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
286 981 713 158 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 514 1764 318 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 468 267 15 Kazakhtelecom Corporate Sales
34984 463 98 143 Tellcom Iletisim Hizmetleri
8866 441 133 23 Bulgarian Telecommunication C
20940 413 97 320 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1374 255 166 TVCABLE BOGOTA
8151 1346 2663 359 Uninet S.A. de C.V.
28573 1219 958 87 Types of queries are: POCs, o
6503 1168 354 74 AVANTEL, S.A.
7303 901 463 143 Telecom Argentina Stet-France
14420 638 57 92 Types of queries are: POCs, o
3816 563 221 100 COLOMBIA TELECOMUNICACIONES S
22047 545 310 15 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 476 37 42 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
24863 763 147 40 LINKdotNET AS number
8452 733 445 11 TEDATA
15475 495 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 219 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 201 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 144 422 86 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 3694 3855 261 bellsouth.net, inc.
4323 2625 1125 406 Time Warner Telecom
19262 1844 4955 284 Verizon Global Networks
4766 1837 9490 573 Korea Telecom (KIX)
1785 1787 697 131 AppliedTheory Corporation
7545 1610 302 86 TPG Internet Pty Ltd
20115 1577 1537 646 Charter Communications
6478 1518 296 79 AT&T Worldnet Services
18566 1435 320 156 Covad Communications
4755 1424 633 162 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 2625 2219 Time Warner Telecom
1785 1787 1656 AppliedTheory Corporation
19262 1844 1560 Verizon Global Networks
7545 1610 1524 TPG Internet Pty Ltd
6478 1518 1439 AT&T Worldnet Services
17974 1404 1374 PT TELEKOMUNIKASI INDONESIA
18566 1435 1279 Covad Communications
4766 1837 1264 Korea Telecom (KIX)
4755 1424 1262 Videsh Sanchar Nigam Ltd. Aut
10620 1374 1208 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 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
10.29.245.22/32 286 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
39.0.0.0/8 237 Merit Network
41.57.192.0/18 22750 BCSNET
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 /8:22 /9:10 /10:26 /11:73 /12:216
/13:445 /14:769 /15:1395 /16:11613 /17:5900 /18:9633
/19:19365 /20:25060 /21:25235 /22:33349 /23:32244 /24:183540
/25:395 /26:370 /27:216 /28:384 /29:324 /30:731
/31:47 /32:674
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 bellsouth.net, inc.
6478 1472 1518 AT&T Worldnet Services
4323 1414 2625 Time Warner Telecom
18566 1413 1435 Covad Communications
10620 1265 1374 TVCABLE BOGOTA
11492 1237 1280 Cable One
7011 1057 1160 Citizens Utilities
1785 1054 1787 AppliedTheory Corporation
19262 954 1844 Verizon Global Networks
6503 951 1168 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:198 2:57 4:17 5:1 8:335 12:2033
13:1 14:409 15:15 16:3 17:8 20:9
23:1 24:1503 27:587 32:127 33:4 34:2
37:1 38:706 40:101 41:2207 44:3 46:623
47:4 49:148 50:93 52:12 55:2 56:2
57:42 58:865 59:477 60:391 61:1111 62:1076
63:1944 64:3858 65:2360 66:4257 67:1809 68:1183
69:3033 70:777 71:408 72:2052 73:3 74:2398
75:304 76:355 77:882 78:714 79:459 80:1069
81:858 82:537 83:484 84:646 85:1069 86:564
87:777 88:360 89:1607 90:157 91:3527 92:494
93:1052 94:1227 95:782 96:453 97:251 98:832
99:33 101:24 107:3 108:88 109:937 110:481
111:704 112:312 113:368 114:493 115:655 116:945
117:681 118:675 119:1018 120:244 121:698 122:1625
123:1052 124:1309 125:1258 128:266 129:159 130:170
131:569 132:109 133:20 134:222 135:49 136:215
137:146 138:293 139:132 140:493 141:203 142:360
143:380 144:488 145:51 146:437 147:212 148:637
149:265 150:161 151:230 152:298 153:180 154:3
155:349 156:176 157:343 158:129 159:380 160:314
161:209 162:274 163:161 164:487 165:355 166:503
167:422 168:742 169:153 170:754 171:69 172:11
173:1334 174:535 175:318 176:1 177:13 178:757
180:815 182:366 183:247 184:278 186:1008 187:811
188:896 189:1067 190:4406 192:5836 193:4830 194:3568
195:3095 196:1198 197:3 198:3585 199:3827 200:5599
201:1594 202:8437 203:8485 204:4096 205:2335 206:2649
207:3088 208:3915 209:3503 210:2649 211:1341 212:1982
213:1786 214:755 215:62 216:4918 217:1642 218:544
219:378 220:1204 221:453 222:337 223:96
End of report
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