Routing Table Report 00:00 GMT Fri 10 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: 363891
Prefixes after maximum aggregation: 164121
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178094
Total ASes present in the Internet Routing Table: 37867
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31686
Origin ASes announcing only one prefix: 15133
Transit ASes present in the Internet Routing Table: 5037
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3564
Unregistered ASNs in the Routing Table: 443
Number of 32-bit ASNs allocated by the RIRs: 1440
Number of 32-bit ASNs visible in the Routing Table: 1144
Prefixes from 32-bit ASNs in the Routing Table: 2668
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 170
Number of addresses announced to Internet: 2488009168
Equivalent to 148 /8s, 76 /16s and 1 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
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: 151616
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86896
Total APNIC prefixes after maximum aggregation: 28960
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83466
Unique aggregates announced from the APNIC address blocks: 36658
APNIC Region origin ASes present in the Internet Routing Table: 4461
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.2
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: 619749314
Equivalent to 36 /8s, 240 /16s and 159 /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: 143873
Total ARIN prefixes after maximum aggregation: 73657
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115497
Unique aggregates announced from the ARIN address blocks: 45999
ARIN Region origin ASes present in the Internet Routing Table: 14440
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5496
ARIN Region transit ASes present in the Internet Routing Table: 1485
Average ARIN Region AS path length visible: 3.8
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: 818840600
Equivalent to 48 /8s, 206 /16s and 132 /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: 88772
Total RIPE prefixes after maximum aggregation: 49051
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81422
Unique aggregates announced from the RIPE address blocks: 52087
RIPE Region origin ASes present in the Internet Routing Table: 15712
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7795
RIPE Region transit ASes present in the Internet Routing Table: 2435
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 845
Number of RIPE addresses announced to Internet: 477213524
Equivalent to 28 /8s, 113 /16s and 179 /24s
Percentage of available RIPE address space announced: 76.9
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: 32955
Total LACNIC prefixes after maximum aggregation: 7542
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32235
Unique aggregates announced from the LACNIC address blocks: 16922
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 257
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 235
Number of LACNIC addresses announced to Internet: 84818696
Equivalent to 5 /8s, 14 /16s and 59 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8410
Total AfriNIC prefixes after maximum aggregation: 1942
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 6374
Unique aggregates announced from the AfriNIC address blocks: 1880
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.8
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: 24153088
Equivalent to 1 /8s, 112 /16s and 140 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1902 9504 619 Korea Telecom (KIX)
17974 1557 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1471 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1146 1064 7 Vietel Corporation
9583 1057 76 506 Sify Limited
9829 1039 877 62 BSNL National Internet Backbo
4808 1038 2085 296 CNCGROUP IP network: China169
17488 953 191 103 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 3635 3822 256 bellsouth.net, inc.
4323 1967 1097 402 Time Warner Telecom
18566 1920 363 267 Covad Communications
1785 1792 681 123 AppliedTheory Corporation
6478 1720 318 44 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
19262 1494 4936 309 Verizon Global Networks
7018 1371 7085 898 AT&T WorldNet Services
22773 1338 2897 87 Cox Communications, Inc.
2386 1272 537 914 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 1050 798 192 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
34984 519 106 180 Tellcom Iletisim Hizmetleri
3292 518 2078 400 TDC Tele Danmark
6830 514 1780 320 UPC Distribution Services
20940 469 137 359 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 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 1513 278 157 TVCABLE BOGOTA
28573 1322 992 80 Types of queries are: POCs, o
8151 1268 2707 362 Uninet S.A. de C.V.
7303 961 505 153 Telecom Argentina Stet-France
6503 741 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 531 231 93 COLOMBIA TELECOMUNICACIONES S
13489 518 262 124 Orbitel S.A. E.S.P.
7738 516 986 31 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 797 445 11 TEDATA
24863 795 147 37 LINKdotNET AS number
15475 528 74 8 Nile Online
36992 308 415 17 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 3635 3822 256 bellsouth.net, inc.
23456 2668 649 1438 >>UNKNOWN<<
4323 1967 1097 402 Time Warner Telecom
18566 1920 363 267 Covad Communications
4766 1902 9504 619 Korea Telecom (KIX)
1785 1792 681 123 AppliedTheory Corporation
6478 1720 318 44 AT&T Worldnet Services
20115 1590 1544 633 Charter Communications
17974 1557 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 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 1720 1676 AT&T Worldnet Services
1785 1792 1669 AppliedTheory Corporation
18566 1920 1653 Covad Communications
4323 1967 1565 Time Warner Telecom
17974 1557 1519 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1471 1306 Videsh Sanchar Nigam Ltd. Aut
4766 1902 1283 Korea Telecom (KIX)
22773 1338 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.
31.131.160.0/21 56897 >>UNKNOWN<<
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:81 /12:230
/13:462 /14:806 /15:1422 /16:12055 /17:6093 /18:10076
/19:19883 /20:26600 /21:26455 /22:34624 /23:33738 /24:188544
/25:364 /26:345 /27:184 /28:182 /29:282 /30:687
/31:76 /32:640
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2237 3635 bellsouth.net, inc.
18566 1877 1920 Covad Communications
6478 1674 1720 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1326 2668 >>UNKNOWN<<
11492 1104 1150 Cable One
7011 1060 1160 Citizens Utilities
1785 1050 1792 AppliedTheory Corporation
7029 940 1257 Alltel Information Services,
286 908 1050 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:282 2:68 4:20 5:1 6:3 8:338
12:1981 13:1 14:461 15:15 16:3 17:8
20:10 23:11 24:1625 27:775 31:430 32:126
33:4 34:2 37:1 38:739 40:103 41:2526
42:6 44:3 46:972 47:3 49:195 50:403
52:13 54:2 55:5 56:2 57:39 58:843
59:477 60:387 61:1123 62:1072 63:1952 64:3963
65:2259 66:4167 67:1896 68:1267 69:3102 70:751
71:378 72:1880 73:2 74:2410 75:323 76:346
77:922 78:708 79:478 80:1119 81:842 82:509
83:476 84:676 85:1090 86:600 87:776 88:337
89:1571 90:205 91:3846 92:527 93:1062 94:1320
95:841 96:444 97:251 98:876 99:36 101:64
103:57 106:1 107:11 108:83 109:976 110:602
111:710 112:302 113:401 114:541 115:689 116:975
117:673 118:794 119:1144 120:313 121:669 122:1626
123:948 124:1271 125:1218 128:262 129:178 130:164
131:576 132:110 133:19 134:214 135:48 136:214
137:144 138:301 139:123 140:479 141:238 142:407
143:417 144:494 145:54 146:446 147:223 148:607
149:247 150:175 151:187 152:330 153:180 154:3
155:399 156:198 157:353 158:138 159:380 160:318
161:209 162:310 163:165 164:499 165:371 166:528
167:424 168:729 169:156 170:804 171:77 172:1
173:1620 174:589 175:371 176:133 177:154 178:1008
180:856 181:18 182:468 183:214 184:376 185:1
186:1199 187:770 188:865 189:890 190:4890 192:5877
193:4938 194:3553 195:3126 196:1236 197:19 198:3597
199:3927 200:5514 201:1480 202:8306 203:8340 204:4191
205:2337 206:2762 207:2841 208:3952 209:3473 210:2726
211:1402 212:2061 213:1775 214:739 215:69 216:4893
217:1643 218:551 219:367 220:1209 221:492 222:317
223:156
End of report
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