Routing Table Report 00:00 GMT Sat 05 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: 353655
Prefixes after maximum aggregation: 158852
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172326
Total ASes present in the Internet Routing Table: 36024
Prefixes per ASN: 9.82
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: 4966
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 31
Max AS path prepend of ASN (16181) 22
Prefixes from unregistered ASNs in the Routing Table: 458
Unregistered ASNs in the Routing Table: 194
Number of 32-bit ASNs allocated by the RIRs: 1169
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: 269
Number of addresses announced to Internet: 2456266238
Equivalent to 146 /8s, 103 /16s and 165 /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: 146275
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84980
Total APNIC prefixes after maximum aggregation: 28549
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81884
Unique aggregates announced from the APNIC address blocks: 36142
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: 1218
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 594748865
Equivalent to 35 /8s, 115 /16s and 37 /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: 143229
Total ARIN prefixes after maximum aggregation: 73717
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113524
Unique aggregates announced from the ARIN address blocks: 44875
ARIN Region origin ASes present in the Internet Routing Table: 14237
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1440
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787635097
Equivalent to 46 /8s, 242 /16s and 91 /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: 85636
Total RIPE prefixes after maximum aggregation: 47265
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78089
Unique aggregates announced from the RIPE address blocks: 49268
RIPE Region origin ASes present in the Internet Routing Table: 15417
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: 3.9
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 479012988
Equivalent to 28 /8s, 141 /16s and 40 /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: 32020
Total LACNIC prefixes after maximum aggregation: 7390
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30896
Unique aggregates announced from the LACNIC address blocks: 16095
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.58
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81283980
Equivalent to 4 /8s, 216 /16s and 75 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7532
Total AfriNIC prefixes after maximum aggregation: 1821
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5917
Unique aggregates announced from the AfriNIC address blocks: 1966
AfriNIC Region origin ASes present in the Internet Routing Table: 433
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: 98
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21863424
Equivalent to 1 /8s, 77 /16s and 156 /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 84 TPG Internet Pty Ltd
4755 1423 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1120 323 185 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1007 2096 287 CNCGROUP IP network: China169
17488 955 161 102 Hathway IP Over Cable Interne
18101 938 117 144 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 1575 1537 650 Charter Communications
6478 1531 297 94 AT&T Worldnet Services
18566 1522 326 178 Covad Communications
7018 1378 6748 901 AT&T WorldNet Services
2386 1301 539 941 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
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1364 2681 364 Uninet S.A. de C.V.
28573 1223 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 516 225 95 COLOMBIA TELECOMUNICACIONES S
7738 479 922 30 Telecomunicacoes da Bahia S.A
27947 472 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 796 445 11 TEDATA
24863 767 147 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 222 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
6713 187 191 17 Itissalat Al-MAGHRIB
16637 151 439 88 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 84 TPG Internet Pty Ltd
20115 1575 1537 650 Charter Communications
6478 1531 297 94 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 1497 TPG Internet Pty Ltd
6478 1531 1437 AT&T Worldnet Services
17974 1405 1376 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 /8:25 /9:10 /10:26 /11:73 /12:217
/13:446 /14:769 /15:1399 /16:11657 /17:5892 /18:9642
/19:19483 /20:25209 /21:25518 /22:33857 /23:32416 /24:184187
/25:392 /26:368 /27:198 /28:342 /29:226 /30:630
/31:52 /32:621
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 1485 1531 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)
----------------------------------------------
1:263 2:64 4:18 5:1 8:340 9:1
12:2032 13:1 14:423 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 38:709 39:1
40:101 41:2303 42:13 44:3 46:689 47:4
49:164 50:179 52:13 55:4 56:2 57:43
58:860 59:479 60:384 61:1113 62:1047 63:1932
64:3873 65:2347 66:4336 67:1805 68:1225 69:2981
70:745 71:411 72:2032 73:3 74:2402 75:305
76:351 77:854 78:700 79:456 80:1069 81:800
82:533 83:474 84:648 85:1066 86:578 87:782
88:362 89:1599 90:169 91:3586 92:496 93:1063
94:1247 95:790 96:463 97:253 98:818 99:34
101:50 106:1 107:4 108:127 109:917 110:471
111:715 112:319 113:388 114:510 115:671 116:970
117:677 118:688 119:1045 120:258 121:703 122:1625
123:1044 124:1312 125:1259 128:267 129:168 130:172
131:562 132:108 133:20 134:221 135:49 136:211
137:146 138:298 139:132 140:486 141:203 142:374
143:383 144:489 145:51 146:435 147:215 148:638
149:265 150:160 151:230 152:299 153:180 154:3
155:376 156:178 157:344 158:127 159:376 160:311
161:210 162:278 163:155 164:487 165:363 166:502
167:409 168:728 169:160 170:757 171:69 172:2
173:1260 174:523 175:321 176:1 177:35 178:759
180:814 181:4 182:396 183:242 184:314 186:1037
187:811 188:908 189:1028 190:4567 192:5805 193:4817
194:3549 195:3092 196:1204 197:4 198:3590 199:3843
200:5571 201:1597 202:8419 203:8480 204:4112 205:2303
206:2662 207:3072 208:3914 209:3474 210:2647 211:1358
212:1981 213:1789 214:757 215:63 216:4863 217:1664
218:549 219:374 220:1207 221:474 222:344 223:104
End of report
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