Routing Table Report 00:00 GMT Tue 08 Mar, 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: 353753
Prefixes after maximum aggregation: 158789
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172447
Total ASes present in the Internet Routing Table: 36029
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 31055
Origin ASes announcing only one prefix: 14894
Transit ASes present in the Internet Routing Table: 4974
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 457
Unregistered ASNs in the Routing Table: 193
Number of 32-bit ASNs allocated by the RIRs: 1179
Prefixes from 32-bit ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 260
Number of addresses announced to Internet: 2467743483
Equivalent to 147 /8s, 22 /16s and 198 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 146183
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85149
Total APNIC prefixes after maximum aggregation: 28577
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 82044
Unique aggregates announced from the APNIC address blocks: 36282
APNIC Region origin ASes present in the Internet Routing Table: 4337
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 690
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 595453889
Equivalent to 35 /8s, 125 /16s and 231 /24s
Percentage of available APNIC address space announced: 75.5
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: 143106
Total ARIN prefixes after maximum aggregation: 73618
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113417
Unique aggregates announced from the ARIN address blocks: 44906
ARIN Region origin ASes present in the Internet Routing Table: 14240
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5386
ARIN Region transit ASes present in the Internet Routing Table: 1447
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796408728
Equivalent to 47 /8s, 120 /16s and 59 /24s
Percentage of available ARIN address space announced: 63.3
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, 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: 85706
Total RIPE prefixes after maximum aggregation: 47264
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78175
Unique aggregates announced from the RIPE address blocks: 49286
RIPE Region origin ASes present in the Internet Routing Table: 15412
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7730
RIPE Region transit ASes present in the Internet Routing Table: 2414
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 481064828
Equivalent to 28 /8s, 172 /16s and 119 /24s
Percentage of available RIPE address space announced: 77.5
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: 32091
Total LACNIC prefixes after maximum aggregation: 7404
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30947
Unique aggregates announced from the LACNIC address blocks: 16124
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.55
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 266
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81380236
Equivalent to 4 /8s, 217 /16s and 195 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7448
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 5836
Unique aggregates announced from the AfriNIC address blocks: 1857
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21891072
Equivalent to 1 /8s, 78 /16s and 8 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1867 9501 591 Korea Telecom (KIX)
7545 1581 301 84 TPG Internet Pty Ltd
4755 1423 377 163 Videsh Sanchar Nigam Ltd. Aut
17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1120 324 186 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1001 2086 285 CNCGROUP IP network: China169
9829 1001 867 52 BSNL National Internet Backbo
17488 956 161 102 Hathway IP Over Cable Interne
18101 933 117 141 Reliance Infocom Ltd Internet
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 3681 3839 260 bellsouth.net, inc.
4323 2579 1125 403 Time Warner Telecom
19262 1830 4953 283 Verizon Global Networks
1785 1792 697 130 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
7018 1379 6748 902 AT&T WorldNet Services
2386 1298 538 938 AT&T Data Communications Serv
11492 1290 236 67 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 1003 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 517 1780 319 UPC Distribution Services
3292 502 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 467 98 146 Tellcom Iletisim Hizmetleri
8866 442 133 23 Bulgarian Telecommunication C
20940 420 99 323 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 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 1384 258 163 TVCABLE BOGOTA
8151 1373 2683 366 Uninet S.A. de C.V.
28573 1224 961 83 Types of queries are: POCs, o
6503 1178 354 74 AVANTEL, S.A.
7303 911 464 146 Telecom Argentina Stet-France
14420 644 56 93 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 517 225 96 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 473 53 46 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
8452 787 445 11 TEDATA
24863 699 147 39 LINKdotNET AS number
15475 446 90 8 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 229 12 9 Starcomms Nigeria Limited
24835 228 78 10 RAYA Telecom - Egypt
6713 200 199 11 Itissalat Al-MAGHRIB
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 3681 3839 260 bellsouth.net, inc.
4323 2579 1125 403 Time Warner Telecom
4766 1867 9501 591 Korea Telecom (KIX)
19262 1830 4953 283 Verizon Global Networks
1785 1792 697 130 AppliedTheory Corporation
7545 1581 301 84 TPG Internet Pty Ltd
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
4755 1423 377 163 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 2579 2176 Time Warner Telecom
1785 1792 1662 AppliedTheory Corporation
19262 1830 1547 Verizon Global Networks
7545 1581 1497 TPG Internet Pty Ltd
6478 1533 1444 AT&T Worldnet Services
17974 1405 1376 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4766 1867 1276 Korea Telecom (KIX)
4755 1423 1260 Videsh Sanchar Nigam Ltd. Aut
11492 1290 1223 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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
13317 UNALLOCATED 12.44.10.0/24 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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /9:11 /10:26 /11:74 /12:217
/13:446 /14:772 /15:1398 /16:11677 /17:5895 /18:9645
/19:19487 /20:25330 /21:25511 /22:33849 /23:32417 /24:184288
/25:387 /26:354 /27:170 /28:304 /29:180 /30:622
/31:52 /32:617
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2270 3681 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1387 2579 Time Warner Telecom
10620 1275 1384 TVCABLE BOGOTA
11492 1247 1290 Cable One
7011 1056 1157 Citizens Utilities
1785 1055 1792 AppliedTheory Corporation
6503 959 1178 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:264 2:63 4:18 5:1 8:341 9:1
12:2031 13:1 14:424 15:15 16:3 17:8
20:9 23:1 24:1522 27:602 31:3 32:127
33:4 34:2 36:2 37:1 38:710 39:1
40:101 41:2273 42:13 44:3 46:706 47:4
49:162 50:181 52:13 55:3 56:2 57:43
58:861 59:480 60:384 61:1114 62:1030 63:1932
64:3877 65:2350 66:4341 67:1806 68:1223 69:2981
70:744 71:412 72:2036 73:3 74:2398 75:305
76:349 77:855 78:704 79:455 80:1083 81:805
82:529 83:474 84:658 85:1066 86:575 87:785
88:362 89:1597 90:171 91:3588 92:497 93:1066
94:1245 95:792 96:471 97:252 98:820 99:34
101:51 106:1 107:4 108:129 109:919 110:478
111:718 112:318 113:391 114:507 115:668 116:968
117:679 118:688 119:1043 120:259 121:704 122:1623
123:1044 124:1311 125:1259 128:267 129:168 130:172
131:561 132:108 133:20 134:221 135:49 136:211
137:146 138:300 139:132 140:487 141:203 142:375
143:380 144:490 145:51 146:435 147:209 148:645
149:265 150:169 151:230 152:298 153:180 154:3
155:377 156:178 157:344 158:130 159:370 160:311
161:211 162:278 163:160 164:487 165:363 166:501
167:409 168:728 169:160 170:758 171:69 172:2
173:1259 174:524 175:327 177:35 178:763 180:815
181:4 182:399 183:244 184:291 186:1040 187:814
188:914 189:1032 190:4588 192:5808 193:4813 194:3543
195:3084 196:1195 197:4 198:3589 199:3857 200:5574
201:1593 202:8439 203:8484 204:4108 205:2309 206:2665
207:3072 208:3908 209:3493 210:2658 211:1357 212:1981
213:1768 214:761 215:63 216:4854 217:1663 218:554
219:374 220:1208 221:474 222:343 223:102
End of report
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