Routing Table Report 00:00 GMT Mon 13 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: 343336
Prefixes after maximum aggregation: 154362
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166452
Total ASes present in the Internet Routing Table: 35475
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30530
Origin ASes announcing only one prefix: 14883
Transit ASes present in the Internet Routing Table: 4945
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 32
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 914
Unregistered ASNs in the Routing Table: 373
Number of 32-bit ASNs allocated by the RIRs: 948
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 195
Number of addresses announced to Internet: 2334766791
Equivalent to 139 /8s, 41 /16s and 182 /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: 141225
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82013
Total APNIC prefixes after maximum aggregation: 27569
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79092
Unique aggregates announced from the APNIC address blocks: 34866
APNIC Region origin ASes present in the Internet Routing Table: 4253
APNIC Prefixes per ASN: 18.60
APNIC Region origin ASes announcing only one prefix: 1221
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 571772354
Equivalent to 34 /8s, 20 /16s and 141 /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: 139924
Total ARIN prefixes after maximum aggregation: 71934
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110554
Unique aggregates announced from the ARIN address blocks: 43828
ARIN Region origin ASes present in the Internet Routing Table: 14066
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5365
ARIN Region transit ASes present in the Internet Routing Table: 1453
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 741883529
Equivalent to 44 /8s, 56 /16s and 62 /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: 82561
Total RIPE prefixes after maximum aggregation: 45711
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75273
Unique aggregates announced from the RIPE address blocks: 47119
RIPE Region origin ASes present in the Internet Routing Table: 15155
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7725
RIPE Region transit ASes present in the Internet Routing Table: 2418
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 450988757
Equivalent to 26 /8s, 225 /16s and 138 /24s
Percentage of available RIPE address space announced: 74.7
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, 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: 31058
Total LACNIC prefixes after maximum aggregation: 7138
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29808
Unique aggregates announced from the LACNIC address blocks: 15456
LACNIC Region origin ASes present in the Internet Routing Table: 1401
LACNIC Prefixes per ASN: 21.28
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78541320
Equivalent to 4 /8s, 174 /16s and 114 /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: 7496
Total AfriNIC prefixes after maximum aggregation: 1887
AfriNIC Deaggregation factor: 3.97
Prefixes being announced from the AfriNIC address blocks: 5815
Unique aggregates announced from the AfriNIC address blocks: 1753
AfriNIC Region origin ASes present in the Internet Routing Table: 424
AfriNIC Prefixes per ASN: 13.71
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: 4.3
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC addresses announced to Internet: 21689600
Equivalent to 1 /8s, 74 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 43.1
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 1384 377 153 Videsh Sanchar Nigam Ltd. Aut
17974 1322 459 27 PT TELEKOMUNIKASI INDONESIA
17488 1098 158 113 Hathway IP Over Cable Interne
9583 1043 107 487 Sify Limited
24560 1038 311 173 Bharti Airtel Ltd.
18101 910 116 139 Reliance Infocom Ltd Internet
4808 900 1619 250 CNCGROUP IP network: China169
9829 837 696 31 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 3735 3871 269 bellsouth.net, inc.
4323 2639 1093 400 Time Warner Telecom
19262 1835 4869 283 Verizon Global Networks
1785 1794 697 131 AppliedTheory Corporation
20115 1557 1534 638 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
7018 1366 5678 880 AT&T WorldNet Services
2386 1306 570 923 AT&T Data Communications Serv
22773 1258 2864 75 Cox Communications, Inc.
11492 1256 234 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
286 947 710 150 KPNQwest Backbone AS
9116 543 328 33 Goldenlines main autonomous s
6830 502 1763 308 UPC Distribution Services
3292 496 2010 384 TDC Tele Danmark
8866 435 133 23 Bulgarian Telecommunication C
9121 433 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
702 403 1867 317 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 1355 2601 370 Uninet S.A. de C.V.
10620 1344 250 156 TVCABLE BOGOTA
28573 1209 932 79 Types of queries are: POCs, o
6503 1176 355 81 AVANTEL, S.A.
7303 829 441 107 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 492 214 100 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 1181 445 10 TEDATA
36992 646 275 157 Etisalat MISR
24863 602 147 40 LINKdotNET AS number
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
24835 199 62 10 RAYA Telecom - Egypt
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 137 418 78 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 3735 3871 269 bellsouth.net, inc.
4323 2639 1093 400 Time Warner Telecom
19262 1835 4869 283 Verizon Global Networks
1785 1794 697 131 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 1384 377 153 Videsh Sanchar Nigam Ltd. Aut
7018 1366 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 2639 2239 Time Warner Telecom
1785 1794 1663 AppliedTheory Corporation
19262 1835 1552 Verizon Global Networks
7545 1556 1479 TPG Internet Pty Ltd
6478 1428 1359 AT&T Worldnet Services
17974 1322 1295 PT TELEKOMUNIKASI INDONESIA
4755 1384 1231 Videsh Sanchar Nigam Ltd. Aut
4766 1726 1210 Korea Telecom (KIX)
10620 1344 1188 TVCABLE BOGOTA
22773 1258 1183 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
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 /15:1368 /16:11471 /17:5751 /18:9490
/19:19127 /20:24580 /21:24601 /22:32170 /23:31235 /24:179024
/25:370 /26:378 /27:199 /28:384 /29:314 /30:687
/31:39 /32:626
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2306 3735 bellsouth.net, inc.
4323 1427 2639 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 1794 AppliedTheory Corporation
8452 1043 1181 TEDATA
6503 960 1176 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 2:28 4:17 5:1 8:319 12:2033
13:6 14:89 15:17 16:3 17:8 20:9
24:1445 27:485 32:144 33:6 34:2 36:1
37:1 38:718 40:101 41:2676 42:1 44:3
46:361 47:4 49:39 50:18 52:12 55:3
56:2 57:41 58:858 59:502 60:417 61:1118
62:1046 63:1940 64:3737 65:2323 66:4091 67:1790
68:1154 69:2925 70:753 71:391 72:1993 73:2
74:2332 75:298 76:328 77:867 78:745 79:446
80:1067 81:812 82:533 83:454 84:655 85:1064
86:500 87:738 88:415 89:1608 90:137 91:3329
92:460 93:1036 94:1110 95:706 96:406 97:246
98:715 99:33 101:3 107:2 108:69 109:821
110:467 111:675 112:309 113:313 114:482 115:644
116:996 117:666 118:605 119:1005 120:198 121:700
122:1573 123:1024 124:1226 125:1227 128:202 129:155
130:171 131:567 132:234 133:20 134:210 135:50
136:213 137:147 138:291 139:128 140:481 141:196
142:354 143:518 144:488 145:55 146:424 147:192
148:640 149:326 150:150 151:229 152:296 153:172
154:3 155:367 156:166 157:339 158:126 159:369
160:314 161:197 162:276 163:161 164:435 165:353
166:469 167:420 168:738 169:153 170:722 171:67
172:2 173:1145 174:466 175:276 176:1 178:628
180:733 182:536 183:240 184:205 186:892 187:763
188:882 189:1012 190:4271 192:5820 193:4824 194:3529
195:3052 196:1215 197:1 198:3548 199:3675 200:5525
201:1583 202:8384 203:8393 204:4046 205:2337 206:2584
207:2969 208:3865 209:3481 210:2549 211:1335 212:1922
213:1757 214:731 215:62 216:4791 217:1629 218:522
219:400 220:1191 221:445 222:341 223:76
End of report
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