Routing Table Report 00:00 GMT Sun 06 Mar, 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: 353593
Prefixes after maximum aggregation: 158802
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172203
Total ASes present in the Internet Routing Table: 36026
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 31058
Origin ASes announcing only one prefix: 14903
Transit ASes present in the Internet Routing Table: 4968
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 31
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 460
Unregistered ASNs in the Routing Table: 196
Number of 32-bit ASNs allocated by the RIRs: 1173
Prefixes from 32-bit ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 267
Number of addresses announced to Internet: 2456367355
Equivalent to 146 /8s, 105 /16s and 48 /24s
Percentage of available address space announced: 66.3
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 146208
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84992
Total APNIC prefixes after maximum aggregation: 28555
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81880
Unique aggregates announced from the APNIC address blocks: 36135
APNIC Region origin ASes present in the Internet Routing Table: 4335
APNIC Prefixes per ASN: 18.89
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 594742721
Equivalent to 35 /8s, 115 /16s and 13 /24s
Percentage of available APNIC address space announced: 75.4
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: 143088
Total ARIN prefixes after maximum aggregation: 73610
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113409
Unique aggregates announced from the ARIN address blocks: 44888
ARIN Region origin ASes present in the Internet Routing Table: 14236
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5392
ARIN Region transit ASes present in the Internet Routing Table: 1441
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787658136
Equivalent to 46 /8s, 242 /16s and 181 /24s
Percentage of available ARIN address space announced: 62.6
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: 85619
Total RIPE prefixes after maximum aggregation: 47282
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78072
Unique aggregates announced from the RIPE address blocks: 49265
RIPE Region origin ASes present in the Internet Routing Table: 15414
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7732
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: 31
Number of RIPE addresses announced to Internet: 479030908
Equivalent to 28 /8s, 141 /16s and 110 /24s
Percentage of available RIPE address space announced: 77.2
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: 32084
Total LACNIC prefixes after maximum aggregation: 7429
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30942
Unique aggregates announced from the LACNIC address blocks: 16101
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.55
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81341068
Equivalent to 4 /8s, 217 /16s and 42 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7554
Total AfriNIC prefixes after maximum aggregation: 1817
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 5934
Unique aggregates announced from the AfriNIC address blocks: 1838
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21898496
Equivalent to 1 /8s, 78 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1863 9493 590 Korea Telecom (KIX)
7545 1581 301 85 TPG Internet Pty Ltd
4755 1423 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1400 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1117 324 186 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1007 2096 287 CNCGROUP IP network: China169
17488 956 161 102 Hathway IP Over Cable Interne
18101 937 117 144 Reliance Infocom Ltd Internet
9829 898 764 46 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 3683 3855 261 bellsouth.net, inc.
4323 2580 1125 403 Time Warner Telecom
19262 1830 4953 283 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
7018 1377 6748 900 AT&T WorldNet Services
2386 1300 539 940 AT&T Data Communications Serv
11492 1288 236 70 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 1003 761 159 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 319 UPC Distribution Services
3292 502 1996 390 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 466 98 146 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 420 99 323 Akamai Technologies European
8551 405 355 38 Bezeq International
3320 404 7604 352 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 1388 258 163 TVCABLE BOGOTA
8151 1366 2683 367 Uninet S.A. de C.V.
28573 1224 961 83 Types of queries are: POCs, o
6503 1177 354 74 AVANTEL, S.A.
7303 911 464 146 Telecom Argentina Stet-France
14420 644 56 93 Types of queries are: POCs, o
22047 541 310 15 Types of queries are: POCs, o
3816 502 217 108 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 470 53 46 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 806 445 11 TEDATA
24863 768 147 39 LINKdotNET AS number
15475 446 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 226 78 10 RAYA Telecom - Egypt
6713 200 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 144 422 86 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 3683 3855 261 bellsouth.net, inc.
4323 2580 1125 403 Time Warner Telecom
4766 1863 9493 590 Korea Telecom (KIX)
19262 1830 4953 283 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
7545 1581 301 85 TPG Internet Pty Ltd
20115 1577 1537 650 Charter Communications
6478 1533 298 89 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
4755 1423 633 164 Videsh Sanchar Nigam Ltd. Aut
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 2580 2177 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
19262 1830 1547 Verizon Global Networks
7545 1581 1496 TPG Internet Pty Ltd
6478 1533 1444 AT&T Worldnet Services
17974 1400 1371 PT TELEKOMUNIKASI INDONESIA
18566 1522 1344 Covad Communications
4766 1863 1273 Korea Telecom (KIX)
4755 1423 1259 Videsh Sanchar Nigam Ltd. Aut
10620 1388 1225 TVCABLE BOGOTA
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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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
1.5.0.0/16 38639 NTT Communications Corporatio
1.6.0.0/15 38639 NTT Communications Corporatio
1.8.0.0/16 38639 NTT Communications Corporatio
1.20.0.0/16 38639 NTT Communications Corporatio
1.32.0.0/16 38639 NTT Communications Corporatio
1.37.0.0/16 38639 NTT Communications Corporatio
1.187.0.0/16 38639 NTT Communications Corporatio
14.0.0.0/24 38639 NTT Communications Corporatio
14.0.1.0/24 38639 NTT Communications Corporatio
14.0.2.0/23 38639 NTT Communications Corporatio
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 /8:24 /9:10 /10:26 /11:73 /12:217
/13:446 /14:771 /15:1398 /16:11672 /17:5895 /18:9632
/19:19498 /20:25214 /21:25527 /22:33855 /23:32417 /24:184233
/25:385 /26:356 /27:170 /28:304 /29:180 /30:619
/31:52 /32:619
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2271 3683 bellsouth.net, inc.
18566 1500 1522 Covad Communications
6478 1487 1533 AT&T Worldnet Services
4323 1388 2580 Time Warner Telecom
10620 1279 1388 TVCABLE BOGOTA
11492 1245 1288 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1793 AppliedTheory Corporation
6503 958 1177 AVANTEL, S.A.
19262 941 1830 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:262 2:63 4:18 5:1 8:340 9:1
12:2014 13:1 14:424 15:15 16:3 17:8
20:9 23:1 24:1522 27:595 31:3 32:127
33:4 34:2 36:2 37:1 38:712 39:1
40:101 41:2307 42:13 44:3 46:689 47:4
49:163 50:180 52:13 55:3 56:2 57:43
58:861 59:479 60:384 61:1113 62:1048 63:1932
64:3872 65:2350 66:4337 67:1805 68:1223 69:2981
70:745 71:411 72:2032 73:3 74:2405 75:305
76:349 77:848 78:702 79:457 80:1071 81:800
82:533 83:474 84:648 85:1066 86:578 87:782
88:362 89:1600 90:169 91:3581 92:496 93:1065
94:1247 95:778 96:463 97:252 98:818 99:34
101:50 106:1 107:4 108:129 109:919 110:476
111:721 112:318 113:388 114:509 115:671 116:968
117:677 118:688 119:1046 120:259 121:699 122:1625
123:1044 124:1312 125:1258 128:267 129:168 130:172
131:562 132:108 133:20 134:220 135:49 136:211
137:146 138:298 139:132 140:486 141:203 142:375
143:381 144:491 145:51 146:435 147:215 148:640
149:265 150:169 151:230 152:299 153:180 154:3
155:376 156:178 157:344 158:127 159:376 160:311
161:210 162:278 163:157 164:482 165:363 166:501
167:409 168:728 169:160 170:756 171:69 172:2
173:1262 174:522 175:322 176:1 177:35 178:791
180:816 181:4 182:395 183:244 184:314 186:1038
187:810 188:912 189:1032 190:4588 192:5807 193:4812
194:3537 195:3098 196:1206 197:4 198:3587 199:3850
200:5578 201:1595 202:8418 203:8475 204:4109 205:2308
206:2662 207:3074 208:3905 209:3489 210:2659 211:1358
212:1982 213:1771 214:750 215:63 216:4861 217:1662
218:552 219:374 220:1206 221:474 222:344 223:103
End of report
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