Routing Table Report 00:00 GMT Sun 12 Dec, 2010
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: 343335
Prefixes after maximum aggregation: 154217
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 166426
Total ASes present in the Internet Routing Table: 35472
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30603
Origin ASes announcing only one prefix: 14880
Transit ASes present in the Internet Routing Table: 4869
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 26
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 880
Unregistered ASNs in the Routing Table: 367
Number of 32-bit ASNs allocated by the RIRs: 942
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 197
Number of addresses announced to Internet: 2334677703
Equivalent to 139 /8s, 40 /16s and 90 /24s
Percentage of available address space announced: 63.0
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.6
Total number of prefixes smaller than registry allocations: 141166
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82090
Total APNIC prefixes after maximum aggregation: 27516
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 79161
Unique aggregates announced from the APNIC address blocks: 34915
APNIC Region origin ASes present in the Internet Routing Table: 4254
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 571781314
Equivalent to 34 /8s, 20 /16s and 176 /24s
Percentage of available APNIC address space announced: 77.5
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, 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: 139882
Total ARIN prefixes after maximum aggregation: 71851
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110512
Unique aggregates announced from the ARIN address blocks: 43827
ARIN Region origin ASes present in the Internet Routing Table: 14069
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5363
ARIN Region transit ASes present in the Internet Routing Table: 1470
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 741901961
Equivalent to 44 /8s, 56 /16s and 134 /24s
Percentage of available ARIN address space announced: 62.3
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: 82439
Total RIPE prefixes after maximum aggregation: 45720
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 75153
Unique aggregates announced from the RIPE address blocks: 47089
RIPE Region origin ASes present in the Internet Routing Table: 15152
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7724
RIPE Region transit ASes present in the Internet Routing Table: 2336
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 450867413
Equivalent to 26 /8s, 223 /16s and 176 /24s
Percentage of available RIPE address space announced: 74.6
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, 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: 31014
Total LACNIC prefixes after maximum aggregation: 7117
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29766
Unique aggregates announced from the LACNIC address blocks: 15420
LACNIC Region origin ASes present in the Internet Routing Table: 1403
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78582792
Equivalent to 4 /8s, 175 /16s and 20 /24s
Percentage of available LACNIC address space announced: 58.5
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: 7648
Total AfriNIC prefixes after maximum aggregation: 1892
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 5942
Unique aggregates announced from the AfriNIC address blocks: 1773
AfriNIC Region origin ASes present in the Internet Routing Table: 424
AfriNIC Prefixes per ASN: 14.01
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 21774336
Equivalent to 1 /8s, 76 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 43.3
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 1726 9453 516 Korea Telecom (KIX)
7545 1556 298 77 TPG Internet Pty Ltd
4755 1383 377 152 Videsh Sanchar Nigam Ltd. Aut
17974 1328 459 27 PT TELEKOMUNIKASI INDONESIA
17488 1098 158 113 Hathway IP Over Cable Interne
9583 1046 107 487 Sify Limited
24560 1035 309 170 Bharti Airtel Ltd.
4808 966 1682 264 CNCGROUP IP network: China169
18101 906 116 136 Reliance Infocom Ltd Internet
9829 835 695 30 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 3734 3871 268 bellsouth.net, inc.
4323 2642 1093 401 Time Warner Telecom
19262 1834 4853 282 Verizon Global Networks
1785 1797 697 132 AppliedTheory Corporation
20115 1557 1534 638 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
7018 1365 5678 880 AT&T WorldNet Services
2386 1307 571 924 AT&T Data Communications Serv
11492 1256 234 73 Cable One
22773 1256 2863 73 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
286 949 711 151 KPNQwest Backbone AS
9116 543 328 33 Goldenlines main autonomous s
6830 503 1763 309 UPC Distribution Services
3292 497 2010 385 TDC Tele Danmark
8866 436 137 24 Bulgarian Telecommunication C
9121 434 1690 29 TTnet Autonomous System
34984 422 92 191 Tellcom Iletisim Hizmetleri
9198 414 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 397 1864 311 UUNET - Commercial IP service
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 1354 2617 370 Uninet S.A. de C.V.
10620 1344 250 156 TVCABLE BOGOTA
28573 1209 932 79 Types of queries are: POCs, o
6503 1177 355 81 AVANTEL, S.A.
7303 828 440 107 Telecom Argentina Stet-France
14420 584 49 88 Types of queries are: POCs, o
22047 563 310 15 Types of queries are: POCs, o
3816 493 214 101 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 1107 445 10 TEDATA
24863 747 147 40 LINKdotNET AS number
36992 658 275 157 Etisalat MISR
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
24835 198 78 10 RAYA Telecom - Egypt
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 151 419 79 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 3734 3871 268 bellsouth.net, inc.
4323 2642 1093 401 Time Warner Telecom
19262 1834 4853 282 Verizon Global Networks
1785 1797 697 132 AppliedTheory Corporation
4766 1726 9453 516 Korea Telecom (KIX)
20115 1557 1534 638 Charter Communications
7545 1556 298 77 TPG Internet Pty Ltd
6478 1428 289 69 AT&T Worldnet Services
4755 1383 377 152 Videsh Sanchar Nigam Ltd. Aut
7018 1365 5678 880 AT&T WorldNet Services
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 2642 2241 Time Warner Telecom
1785 1797 1665 AppliedTheory Corporation
19262 1834 1552 Verizon Global Networks
7545 1556 1479 TPG Internet Pty Ltd
6478 1428 1359 AT&T Worldnet Services
17974 1328 1301 PT TELEKOMUNIKASI INDONESIA
4755 1383 1231 Videsh Sanchar Nigam Ltd. Aut
4766 1726 1210 Korea Telecom (KIX)
10620 1344 1188 TVCABLE BOGOTA
11492 1256 1183 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
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 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
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 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
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>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 /8:21 /9:10 /10:25 /11:71 /12:211
/13:429 /14:755 /15:1369 /16:11467 /17:5751 /18:9494
/19:19132 /20:24586 /21:24594 /22:32159 /23:31336 /24:178940
/25:368 /26:377 /27:199 /28:383 /29:314 /30:686
/31:40 /32:618
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2306 3734 bellsouth.net, inc.
4323 1429 2642 Time Warner Telecom
6478 1385 1428 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1213 1256 Cable One
18566 1072 1091 Covad Communications
7011 1069 1172 Citizens Utilities
1785 1067 1797 AppliedTheory Corporation
8452 971 1107 TEDATA
6503 961 1177 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:128 2:26 4:17 5:1 8:319 12:2033
13:6 14:88 15:17 16:3 17:8 20:9
24:1445 27:484 32:144 33:6 34:2 36:1
37:1 38:718 40:101 41:2631 42:1 44:3
46:335 47:4 49:39 50:18 52:12 55:6
56:2 57:41 58:858 59:502 60:417 61:1118
62:1043 63:1938 64:3731 65:2321 66:4091 67:1791
68:1154 69:2924 70:753 71:391 72:1993 73:2
74:2334 75:298 76:328 77:862 78:745 79:447
80:1062 81:811 82:534 83:454 84:655 85:1061
86:497 87:734 88:414 89:1603 90:137 91:3330
92:458 93:1031 94:1109 95:710 96:406 97:246
98:714 99:33 101:3 107:2 108:69 109:822
110:467 111:675 112:310 113:316 114:483 115:646
116:1002 117:667 118:605 119:1006 120:198 121:718
122:1572 123:1023 124:1226 125:1229 128:233 129:155
130:171 131:563 132:232 133:20 134:210 135:50
136:213 137:147 138:291 139:128 140:481 141:196
142:354 143:516 144:487 145:55 146:424 147:192
148:641 149:326 150:150 151:230 152:296 153:172
154:3 155:364 156:166 157:339 158:126 159:369
160:313 161:197 162:275 163:165 164:432 165:353
166:469 167:420 168:737 169:153 170:722 171:67
172:2 173:1145 174:465 175:277 176:1 178:628
180:734 182:535 183:239 184:205 186:892 187:764
188:878 189:1012 190:4263 192:5811 193:4832 194:3522
195:3050 196:1201 197:1 198:3543 199:3657 200:5510
201:1583 202:8413 203:8397 204:4046 205:2334 206:2584
207:2969 208:3864 209:3473 210:2550 211:1335 212:1943
213:1758 214:731 215:62 216:4794 217:1626 218:526
219:400 220:1192 221:445 222:341 223:76
End of report
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