Routing Table Report 00:00 GMT Thu 27 Jan, 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: 348215
Prefixes after maximum aggregation: 156267
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169317
Total ASes present in the Internet Routing Table: 35734
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 30802
Origin ASes announcing only one prefix: 14892
Transit ASes present in the Internet Routing Table: 4932
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 399
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1040
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 217
Number of addresses announced to Internet: 2348784767
Equivalent to 139 /8s, 255 /16s and 156 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 143241
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83898
Total APNIC prefixes after maximum aggregation: 28018
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80807
Unique aggregates announced from the APNIC address blocks: 35534
APNIC Region origin ASes present in the Internet Routing Table: 4297
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 683
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 583864770
Equivalent to 34 /8s, 205 /16s and 17 /24s
Percentage of available APNIC address space announced: 79.1
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: 141157
Total ARIN prefixes after maximum aggregation: 72724
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111764
Unique aggregates announced from the ARIN address blocks: 44359
ARIN Region origin ASes present in the Internet Routing Table: 14158
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5381
ARIN Region transit ASes present in the Internet Routing Table: 1466
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 750498953
Equivalent to 44 /8s, 187 /16s and 180 /24s
Percentage of available ARIN address space announced: 63.0
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: 83931
Total RIPE prefixes after maximum aggregation: 46331
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76544
Unique aggregates announced from the RIPE address blocks: 48130
RIPE Region origin ASes present in the Internet Routing Table: 15250
RIPE Prefixes per ASN: 5.02
RIPE Region origin ASes announcing only one prefix: 7729
RIPE Region transit ASes present in the Internet Routing Table: 2377
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 456810249
Equivalent to 27 /8s, 58 /16s and 95 /24s
Percentage of available RIPE address space announced: 75.6
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31676
Total LACNIC prefixes after maximum aggregation: 7232
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 30442
Unique aggregates announced from the LACNIC address blocks: 15814
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.41
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 80200844
Equivalent to 4 /8s, 199 /16s and 196 /24s
Percentage of available LACNIC address space announced: 59.8
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: 7290
Total AfriNIC prefixes after maximum aggregation: 1840
AfriNIC Deaggregation factor: 3.96
Prefixes being announced from the AfriNIC address blocks: 5771
Unique aggregates announced from the AfriNIC address blocks: 1788
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21566464
Equivalent to 1 /8s, 73 /16s and 20 /24s
Percentage of available AfriNIC address space announced: 42.8
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 1759 9484 515 Korea Telecom (KIX)
7545 1577 300 81 TPG Internet Pty Ltd
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1388 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1093 317 180 Bharti Airtel Ltd.
9583 1043 76 486 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
18101 920 116 140 Reliance Infocom Ltd Internet
4808 911 1969 259 CNCGROUP IP network: China169
9829 864 731 49 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 3709 3855 265 bellsouth.net, inc.
4323 2640 1093 404 Time Warner Telecom
19262 1840 4927 284 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
20115 1569 1533 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
7018 1370 6682 886 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1270 235 71 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
286 976 710 153 KPNQwest Backbone AS
9116 522 328 32 Goldenlines main autonomous s
3292 503 2011 388 TDC Tele Danmark
6830 503 1763 308 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
12479 409 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
3320 401 7618 350 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 1357 252 165 TVCABLE BOGOTA
8151 1335 2622 361 Uninet S.A. de C.V.
28573 1245 959 82 Types of queries are: POCs, o
6503 1149 355 78 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 612 54 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 511 220 97 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 458 53 48 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 773 445 11 TEDATA
24863 762 147 40 LINKdotNET AS number
36992 641 329 19 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 164 438 88 Johnnic e-Ventures
36874 139 24 6 Cybersmart
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 3709 3855 265 bellsouth.net, inc.
4323 2640 1093 404 Time Warner Telecom
19262 1840 4927 284 Verizon Global Networks
1785 1788 697 134 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
7545 1577 300 81 TPG Internet Pty Ltd
20115 1569 1533 643 Charter Communications
6478 1474 291 72 AT&T Worldnet Services
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1388 459 28 PT TELEKOMUNIKASI INDONESIA
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 2640 2236 Time Warner Telecom
1785 1788 1654 AppliedTheory Corporation
19262 1840 1556 Verizon Global Networks
7545 1577 1496 TPG Internet Pty Ltd
6478 1474 1402 AT&T Worldnet Services
17974 1388 1360 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1401 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1270 1199 Cable One
22773 1274 1197 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
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 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
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:19 /9:10 /10:26 /11:71 /12:216
/13:439 /14:768 /15:1386 /16:11594 /17:5837 /18:9591
/19:19427 /20:24886 /21:24932 /22:32916 /23:32059 /24:181036
/25:361 /26:373 /27:199 /28:371 /29:301 /30:698
/31:47 /32:652
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1428 1474 AT&T Worldnet Services
4323 1426 2640 Time Warner Telecom
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1120 1139 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1059 1788 AppliedTheory Corporation
19262 954 1840 Verizon Global Networks
6503 934 1149 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:166 2:46 4:17 5:1 8:333 12:2035
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1489 27:550 32:121 33:5 34:2
36:1 37:1 38:693 40:101 41:2284 42:1
44:3 46:511 47:5 49:143 50:58 52:12
55:6 56:2 57:41 58:871 59:485 60:391
61:1135 62:1038 63:1929 64:3784 65:2337 66:4095
67:1788 68:1153 69:2973 70:758 71:397 72:2032
73:3 74:2352 75:304 76:338 77:833 78:710
79:447 80:1045 81:802 82:541 83:469 84:660
85:1070 86:533 87:754 88:358 89:1605 90:157
91:3431 92:494 93:1020 94:1193 95:774 96:413
97:249 98:763 99:33 101:25 107:3 108:81
109:866 110:468 111:693 112:312 113:359 114:498
115:633 116:901 117:677 118:636 119:1010 120:244
121:712 122:1608 123:1047 124:1290 125:1214 128:248
129:159 130:174 131:569 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:128 140:488
141:198 142:365 143:376 144:488 145:51 146:424
147:204 148:626 149:273 150:153 151:231 152:303
153:175 154:3 155:346 156:174 157:342 158:129
159:376 160:314 161:203 162:277 163:151 164:470
165:353 166:482 167:422 168:749 169:153 170:747
171:66 172:2 173:1269 174:519 175:309 176:1
177:4 178:761 180:764 182:402 183:250 184:239
186:957 187:789 188:899 189:1036 190:4437 192:5819
193:4817 194:3539 195:3069 196:1164 197:2 198:3567
199:3758 200:5611 201:1580 202:8451 203:8445 204:4092
205:2350 206:2598 207:2969 208:3894 209:3483 210:2644
211:1334 212:1853 213:1745 214:751 215:62 216:4850
217:1636 218:546 219:375 220:1201 221:448 222:371
223:92
End of report
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