Routing Table Report 00:00 GMT Tue 15 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: 354883
Prefixes after maximum aggregation: 159304
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 173116
Total ASes present in the Internet Routing Table: 36097
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 31182
Origin ASes announcing only one prefix: 14918
Transit ASes present in the Internet Routing Table: 4915
Transit-only ASes present in the Internet Routing Table: 119
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 488
Unregistered ASNs in the Routing Table: 216
Number of 32-bit ASNs allocated by the RIRs: 1199
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: 254
Number of addresses announced to Internet: 2469587211
Equivalent to 147 /8s, 50 /16s and 233 /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: 146670
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85575
Total APNIC prefixes after maximum aggregation: 28632
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 82461
Unique aggregates announced from the APNIC address blocks: 36387
APNIC Region origin ASes present in the Internet Routing Table: 4338
APNIC Prefixes per ASN: 19.01
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 595993025
Equivalent to 35 /8s, 134 /16s and 33 /24s
Percentage of available APNIC address space announced: 75.6
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: 143461
Total ARIN prefixes after maximum aggregation: 73804
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113689
Unique aggregates announced from the ARIN address blocks: 44968
ARIN Region origin ASes present in the Internet Routing Table: 14266
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5401
ARIN Region transit ASes present in the Internet Routing Table: 1450
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 796480792
Equivalent to 47 /8s, 121 /16s and 85 /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: 85990
Total RIPE prefixes after maximum aggregation: 47545
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78498
Unique aggregates announced from the RIPE address blocks: 49829
RIPE Region origin ASes present in the Internet Routing Table: 15450
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2377
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 481520652
Equivalent to 28 /8s, 179 /16s and 108 /24s
Percentage of available RIPE address space announced: 77.6
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: 32064
Total LACNIC prefixes after maximum aggregation: 7392
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 30965
Unique aggregates announced from the LACNIC address blocks: 16065
LACNIC Region origin ASes present in the Internet Routing Table: 1431
LACNIC Prefixes per ASN: 21.64
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81375884
Equivalent to 4 /8s, 217 /16s and 178 /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: 7531
Total AfriNIC prefixes after maximum aggregation: 1827
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5910
Unique aggregates announced from the AfriNIC address blocks: 1836
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 129
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 22074880
Equivalent to 1 /8s, 80 /16s and 214 /24s
Percentage of available AfriNIC address space announced: 32.9
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 1864 9500 588 Korea Telecom (KIX)
7545 1568 301 84 TPG Internet Pty Ltd
4755 1464 393 153 Videsh Sanchar Nigam Ltd. Aut
17974 1410 468 29 PT TELEKOMUNIKASI INDONESIA
24560 1129 324 186 Bharti Airtel Ltd.
9583 1047 77 487 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
4808 996 2072 282 CNCGROUP IP network: China169
17488 961 162 96 Hathway IP Over Cable Interne
18101 934 117 141 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 3677 3839 259 bellsouth.net, inc.
4323 2585 1109 403 Time Warner Telecom
19262 1831 4953 283 Verizon Global Networks
1785 1793 681 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1545 299 72 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
7018 1368 6738 890 AT&T WorldNet Services
11492 1313 237 64 Cable One
2386 1293 537 932 AT&T Data Communications Serv
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 1008 796 165 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 516 1780 318 UPC Distribution Services
3292 505 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
8866 445 133 24 Bulgarian Telecommunication C
34984 436 94 196 Tellcom Iletisim Hizmetleri
8402 427 320 32 Corbina telecom
20940 414 97 319 Akamai Technologies European
3320 405 7604 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 1392 259 163 TVCABLE BOGOTA
28573 1239 963 83 Types of queries are: POCs, o
8151 1235 2682 364 Uninet S.A. de C.V.
6503 1175 354 74 AVANTEL, S.A.
7303 920 464 146 Telecom Argentina Stet-France
14420 634 51 88 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 515 225 96 COLOMBIA TELECOMUNICACIONES S
11172 489 99 83 Alestra
7738 479 922 30 Telecomunicacoes da Bahia 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 795 445 11 TEDATA
24863 773 147 39 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 297 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 225 78 10 RAYA Telecom - Egypt
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 142 422 85 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 3677 3839 259 bellsouth.net, inc.
4323 2585 1109 403 Time Warner Telecom
4766 1864 9500 588 Korea Telecom (KIX)
19262 1831 4953 283 Verizon Global Networks
1785 1793 681 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
7545 1568 301 84 TPG Internet Pty Ltd
6478 1545 299 72 AT&T Worldnet Services
18566 1524 326 180 Covad Communications
4755 1464 393 153 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 2585 2182 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
19262 1831 1548 Verizon Global Networks
7545 1568 1484 TPG Internet Pty Ltd
6478 1545 1473 AT&T Worldnet Services
17974 1410 1381 PT TELEKOMUNIKASI INDONESIA
18566 1524 1344 Covad Communications
4755 1464 1311 Videsh Sanchar Nigam Ltd. Aut
4766 1864 1276 Korea Telecom (KIX)
11492 1313 1249 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 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
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
/13:447 /14:773 /15:1397 /16:11686 /17:5910 /18:9661
/19:19544 /20:25337 /21:25653 /22:33959 /23:32579 /24:185089
/25:362 /26:346 /27:152 /28:161 /29:170 /30:625
/31:54 /32:626
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3677 bellsouth.net, inc.
18566 1503 1524 Covad Communications
6478 1499 1545 AT&T Worldnet Services
4323 1393 2585 Time Warner Telecom
10620 1283 1392 TVCABLE BOGOTA
11492 1270 1313 Cable One
7011 1064 1164 Citizens Utilities
1785 1057 1793 AppliedTheory Corporation
6503 953 1175 AVANTEL, S.A.
19262 941 1831 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:271 2:85 4:18 5:1 8:342 12:2028
13:1 14:432 15:15 16:3 17:8 20:10
23:3 24:1553 27:630 31:2 32:127 33:4
34:2 36:2 37:1 38:716 39:1 40:101
41:2312 42:13 44:3 46:722 47:4 49:164
50:202 52:13 55:2 56:2 57:43 58:862
59:497 60:387 61:1144 62:1032 63:1931 64:3898
65:2356 66:4360 67:1800 68:1242 69:2998 70:748
71:405 72:2030 73:3 74:2410 75:299 76:351
77:854 78:702 79:463 80:1094 81:821 82:527
83:478 84:657 85:1066 86:579 87:787 88:359
89:1605 90:174 91:3641 92:498 93:1045 94:1240
95:799 96:471 97:252 98:808 99:34 101:63
106:1 107:4 108:129 109:917 110:476 111:718
112:321 113:381 114:495 115:714 116:985 117:677
118:716 119:1040 120:261 121:758 122:1615 123:1041
124:1318 125:1266 128:266 129:172 130:171 131:562
132:100 133:20 134:218 135:49 136:213 137:145
138:298 139:122 140:487 141:203 142:378 143:381
144:476 145:52 146:428 147:219 148:630 149:265
150:160 151:229 152:298 153:180 154:3 155:375
156:182 157:346 158:131 159:373 160:312 161:212
162:277 163:161 164:491 165:369 166:499 167:410
168:724 169:159 170:757 171:69 172:2 173:1276
174:521 175:325 177:35 178:809 180:818 181:4
182:387 183:241 184:298 186:1042 187:842 188:931
189:1031 190:4652 192:5802 193:4815 194:3538 195:3083
196:1209 197:4 198:3594 199:3864 200:5587 201:1587
202:8477 203:8507 204:4111 205:2314 206:2659 207:3052
208:3935 209:3486 210:2693 211:1353 212:1991 213:1762
214:762 215:66 216:4888 217:1659 218:557 219:381
220:1205 221:477 222:346 223:100
End of report
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