Routing Table Report 00:00 GMT Tue 07 Jun, 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: 363525
Prefixes after maximum aggregation: 163965
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178172
Total ASes present in the Internet Routing Table: 37817
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31694
Origin ASes announcing only one prefix: 15109
Transit ASes present in the Internet Routing Table: 4987
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3495
Unregistered ASNs in the Routing Table: 426
Number of 32-bit ASNs allocated by the RIRs: 1431
Number of 32-bit ASNs visible in the Routing Table: 1136
Prefixes from 32-bit ASNs in the Routing Table: 2632
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2469325687
Equivalent to 147 /8s, 46 /16s and 235 /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: 91.0
Total number of prefixes smaller than registry allocations: 151442
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86747
Total APNIC prefixes after maximum aggregation: 28962
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83322
Unique aggregates announced from the APNIC address blocks: 36628
APNIC Region origin ASes present in the Internet Routing Table: 4456
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619833537
Equivalent to 36 /8s, 241 /16s and 232 /24s
Percentage of available APNIC address space announced: 78.6
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: 143679
Total ARIN prefixes after maximum aggregation: 73604
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115429
Unique aggregates announced from the ARIN address blocks: 46155
ARIN Region origin ASes present in the Internet Routing Table: 14435
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5495
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818735128
Equivalent to 48 /8s, 204 /16s and 232 /24s
Percentage of available ARIN address space announced: 65.1
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: 88633
Total RIPE prefixes after maximum aggregation: 48964
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81255
Unique aggregates announced from the RIPE address blocks: 51988
RIPE Region origin ASes present in the Internet Routing Table: 15690
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7781
RIPE Region transit ASes present in the Internet Routing Table: 2422
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 840
Number of RIPE addresses announced to Internet: 476071420
Equivalent to 28 /8s, 96 /16s and 69 /24s
Percentage of available RIPE address space announced: 76.7
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, 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: 33130
Total LACNIC prefixes after maximum aggregation: 7557
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 32371
Unique aggregates announced from the LACNIC address blocks: 16943
LACNIC Region origin ASes present in the Internet Routing Table: 1460
LACNIC Prefixes per ASN: 22.17
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 232
Number of LACNIC addresses announced to Internet: 84726280
Equivalent to 5 /8s, 12 /16s and 210 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8397
Total AfriNIC prefixes after maximum aggregation: 1937
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 6363
Unique aggregates announced from the AfriNIC address blocks: 1935
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 13.83
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23588096
Equivalent to 1 /8s, 103 /16s and 237 /24s
Percentage of available AfriNIC address space announced: 35.1
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 1899 9504 617 Korea Telecom (KIX)
17974 1547 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 87 TPG Internet Pty Ltd
4755 1472 630 166 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1141 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 59 BSNL National Internet Backbo
4808 1036 2082 296 CNCGROUP IP network: China169
17488 948 171 105 Hathway IP Over Cable Interne
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 3638 3822 256 bellsouth.net, inc.
4323 1977 1097 401 Time Warner Telecom
18566 1919 363 266 Covad Communications
1785 1791 681 123 AppliedTheory Corporation
6478 1716 318 45 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
19262 1492 4920 307 Verizon Global Networks
7018 1373 7085 899 AT&T WorldNet Services
22773 1339 2897 88 Cox Communications, Inc.
2386 1271 536 913 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 1046 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 517 106 179 Tellcom Iletisim Hizmetleri
6830 516 1780 320 UPC Distribution Services
3292 515 2078 397 TDC Tele Danmark
20940 463 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 429 593 7 Uni2 Autonomous System
3320 424 8152 369 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 1512 278 157 TVCABLE BOGOTA
8151 1383 2707 360 Uninet S.A. de C.V.
28573 1322 992 86 Types of queries are: POCs, o
7303 960 504 154 Telecom Argentina Stet-France
6503 737 354 74 AVANTEL, S.A.
14420 675 54 89 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 529 231 92 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 125 Orbitel S.A. E.S.P.
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
24863 794 147 38 LINKdotNET AS number
8452 776 445 11 TEDATA
15475 524 74 8 Nile Online
36992 307 415 15 Etisalat MISR
16637 296 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
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 3638 3822 256 bellsouth.net, inc.
23456 2632 646 1422 >>UNKNOWN<<
4323 1977 1097 401 Time Warner Telecom
18566 1919 363 266 Covad Communications
4766 1899 9504 617 Korea Telecom (KIX)
1785 1791 681 123 AppliedTheory Corporation
6478 1716 318 45 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
17974 1547 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1716 1671 AT&T Worldnet Services
1785 1791 1668 AppliedTheory Corporation
18566 1919 1653 Covad Communications
4323 1977 1576 Time Warner Telecom
17974 1547 1509 PT TELEKOMUNIKASI INDONESIA
7545 1537 1450 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1472 1306 Videsh Sanchar Nigam Ltd. Aut
4766 1899 1282 Korea Telecom (KIX)
22773 1339 1251 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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 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
23502 UNALLOCATED 12.44.44.0/24 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /9:12 /10:28 /11:81 /12:228
/13:461 /14:804 /15:1422 /16:12033 /17:6094 /18:10070
/19:19862 /20:26536 /21:26403 /22:34558 /23:33654 /24:188394
/25:368 /26:353 /27:181 /28:304 /29:276 /30:677
/31:75 /32:630
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3638 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1670 1716 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1295 2632 >>UNKNOWN<<
11492 1107 1153 Cable One
7011 1062 1161 Citizens Utilities
1785 1050 1791 AppliedTheory Corporation
286 904 1046 KPNQwest Backbone AS
4323 888 1977 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:282 2:71 4:20 5:1 6:3 8:338
12:1983 13:1 14:459 15:15 16:3 17:8
20:10 23:11 24:1625 27:757 31:427 32:126
33:4 34:2 37:1 38:739 40:102 41:2520
42:6 44:3 46:944 47:3 49:198 50:419
52:13 54:2 55:3 56:2 57:39 58:843
59:477 60:387 61:1123 62:1064 63:1950 64:3960
65:2257 66:4165 67:1891 68:1269 69:3091 70:750
71:355 72:1881 73:2 74:2408 75:319 76:349
77:912 78:711 79:479 80:1095 81:839 82:510
83:482 84:689 85:1086 86:609 87:772 88:337
89:1572 90:203 91:3818 92:525 93:1075 94:1314
95:835 96:508 97:251 98:866 99:35 101:63
103:51 106:1 107:7 108:85 109:982 110:599
111:708 112:303 113:402 114:539 115:685 116:971
117:686 118:796 119:1124 120:311 121:671 122:1620
123:952 124:1271 125:1218 128:262 129:174 130:164
131:572 132:108 133:19 134:214 135:48 136:210
137:144 138:301 139:121 140:481 141:239 142:404
143:409 144:492 145:54 146:445 147:222 148:598
149:246 150:171 151:184 152:328 153:179 154:3
155:398 156:198 157:353 158:138 159:380 160:315
161:207 162:280 163:164 164:500 165:371 166:514
167:429 168:728 169:156 170:803 171:77 172:1
173:1580 174:557 175:369 176:130 177:150 178:1004
180:846 181:18 182:458 183:212 184:376 185:1
186:1210 187:772 188:868 189:895 190:4878 192:5876
193:4934 194:3550 195:3132 196:1242 197:19 198:3604
199:3930 200:5533 201:1477 202:8301 203:8334 204:4189
205:2337 206:2768 207:2881 208:3978 209:3483 210:2715
211:1401 212:2062 213:1781 214:732 215:72 216:4958
217:1644 218:551 219:366 220:1207 221:492 222:316
223:152
End of report
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