Routing Table Report 00:00 GMT Fri 04 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: 353192
Prefixes after maximum aggregation: 158710
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 172102
Total ASes present in the Internet Routing Table: 36004
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 31119
Origin ASes announcing only one prefix: 14887
Transit ASes present in the Internet Routing Table: 4885
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 24
Max AS path prepend of ASN ( 3) 21
Prefixes from unregistered ASNs in the Routing Table: 456
Unregistered ASNs in the Routing Table: 195
Number of 32-bit ASNs allocated by the RIRs: 1163
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 266
Number of addresses announced to Internet: 2453976062
Equivalent to 146 /8s, 68 /16s and 179 /24s
Percentage of available address space announced: 66.2
Percentage of allocated address space announced: 66.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.9
Total number of prefixes smaller than registry allocations: 145978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84953
Total APNIC prefixes after maximum aggregation: 28540
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81832
Unique aggregates announced from the APNIC address blocks: 36136
APNIC Region origin ASes present in the Internet Routing Table: 4334
APNIC Prefixes per ASN: 18.88
APNIC Region origin ASes announcing only one prefix: 1217
APNIC Region transit ASes present in the Internet Routing Table: 674
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 594001857
Equivalent to 35 /8s, 103 /16s and 191 /24s
Percentage of available APNIC address space announced: 75.3
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: 142965
Total ARIN prefixes after maximum aggregation: 73631
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113268
Unique aggregates announced from the ARIN address blocks: 44878
ARIN Region origin ASes present in the Internet Routing Table: 14227
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5378
ARIN Region transit ASes present in the Internet Routing Table: 1438
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 787536281
Equivalent to 46 /8s, 240 /16s and 217 /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: 85450
Total RIPE prefixes after maximum aggregation: 47202
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 77939
Unique aggregates announced from the RIPE address blocks: 49253
RIPE Region origin ASes present in the Internet Routing Table: 15402
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7735
RIPE Region transit ASes present in the Internet Routing Table: 2358
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 478908284
Equivalent to 28 /8s, 139 /16s and 143 /24s
Percentage of available RIPE address space announced: 77.1
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: 32014
Total LACNIC prefixes after maximum aggregation: 7410
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30904
Unique aggregates announced from the LACNIC address blocks: 16082
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: 431
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81147532
Equivalent to 4 /8s, 214 /16s and 54 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7543
Total AfriNIC prefixes after maximum aggregation: 1817
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5918
Unique aggregates announced from the AfriNIC address blocks: 1821
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 126
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21884416
Equivalent to 1 /8s, 77 /16s and 238 /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 1859 9493 587 Korea Telecom (KIX)
7545 1580 301 84 TPG Internet Pty Ltd
4755 1417 637 164 Videsh Sanchar Nigam Ltd. Aut
17974 1403 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1116 323 185 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 1003 2086 285 CNCGROUP IP network: China169
17488 955 161 102 Hathway IP Over Cable Interne
18101 933 117 141 Reliance Infocom Ltd Internet
9829 895 761 45 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 260 bellsouth.net, inc.
4323 2588 1125 404 Time Warner Telecom
19262 1836 4954 285 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
20115 1572 1537 653 Charter Communications
6478 1524 296 103 AT&T Worldnet Services
18566 1517 325 179 Covad Communications
7018 1369 6746 892 AT&T WorldNet Services
2386 1296 538 939 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 1008 763 163 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 319 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 469 267 15 Kazakhtelecom Corporate Sales
34984 466 98 146 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 418 98 323 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 1383 257 166 TVCABLE BOGOTA
8151 1354 2679 362 Uninet S.A. de C.V.
28573 1224 961 83 Types of queries are: POCs, o
6503 1174 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 515 224 96 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 808 445 11 TEDATA
24863 767 147 39 LINKdotNET AS number
15475 448 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 221 78 10 RAYA Telecom - Egypt
6713 211 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 150 439 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 260 bellsouth.net, inc.
4323 2588 1125 404 Time Warner Telecom
4766 1859 9493 587 Korea Telecom (KIX)
19262 1836 4954 285 Verizon Global Networks
1785 1793 697 131 AppliedTheory Corporation
7545 1580 301 84 TPG Internet Pty Ltd
20115 1572 1537 653 Charter Communications
6478 1524 296 103 AT&T Worldnet Services
18566 1517 325 179 Covad Communications
4755 1417 637 164 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 2588 2184 Time Warner Telecom
1785 1793 1662 AppliedTheory Corporation
19262 1836 1551 Verizon Global Networks
7545 1580 1496 TPG Internet Pty Ltd
6478 1524 1421 AT&T Worldnet Services
17974 1403 1374 PT TELEKOMUNIKASI INDONESIA
18566 1517 1338 Covad Communications
4766 1859 1272 Korea Telecom (KIX)
4755 1417 1253 Videsh Sanchar Nigam Ltd. Aut
11492 1288 1218 Cable One
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
/13:444 /14:771 /15:1399 /16:11655 /17:5897 /18:9636
/19:19419 /20:25178 /21:25458 /22:33796 /23:32368 /24:183990
/25:395 /26:367 /27:199 /28:337 /29:224 /30:630
/31:50 /32:629
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3683 bellsouth.net, inc.
18566 1495 1517 Covad Communications
6478 1478 1524 AT&T Worldnet Services
4323 1393 2588 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1245 1288 Cable One
7011 1057 1158 Citizens Utilities
1785 1055 1793 AppliedTheory Corporation
6503 955 1174 AVANTEL, S.A.
19262 947 1836 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:265 2:65 4:18 5:1 8:336 12:2031
13:1 14:420 15:15 16:3 17:8 20:9
23:1 24:1522 27:596 31:3 32:127 33:4
34:2 36:2 37:1 38:706 40:101 41:2304
42:13 44:3 46:616 47:4 49:161 50:101
52:13 55:3 56:2 57:43 58:860 59:479
60:384 61:1112 62:1047 63:1934 64:3874 65:2350
66:4322 67:1804 68:1225 69:2979 70:769 71:410
72:2033 73:3 74:2408 75:304 76:355 77:845
78:684 79:458 80:1084 81:802 82:530 83:475
84:651 85:1064 86:525 87:784 88:361 89:1600
90:163 91:3581 92:494 93:1062 94:1233 95:786
96:463 97:253 98:816 99:33 101:51 107:4
108:127 109:911 110:471 111:715 112:317 113:388
114:510 115:659 116:971 117:680 118:685 119:1038
120:251 121:698 122:1624 123:1054 124:1310 125:1260
128:267 129:160 130:172 131:562 132:108 133:20
134:213 135:49 136:216 137:146 138:296 139:132
140:486 141:203 142:375 143:384 144:489 145:51
146:437 147:215 148:636 149:264 150:167 151:230
152:298 153:180 154:3 155:376 156:177 157:345
158:127 159:383 160:312 161:208 162:278 163:156
164:487 165:362 166:503 167:409 168:728 169:160
170:757 171:69 172:2 173:1255 174:516 175:321
176:1 177:32 178:785 180:813 181:4 182:395
183:242 184:277 186:1033 187:849 188:908 189:1031
190:4575 192:5792 193:4823 194:3551 195:3099 196:1219
197:4 198:3593 199:3843 200:5589 201:1596 202:8431
203:8476 204:4109 205:2308 206:2665 207:3075 208:3921
209:3497 210:2644 211:1357 212:1983 213:1771 214:734
215:61 216:4875 217:1663 218:549 219:374 220:1206
221:476 222:344 223:104
End of report
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