Routing Table Report 00:00 GMT Wed 06 Apr, 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: 356287
Prefixes after maximum aggregation: 161093
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 174159
Total ASes present in the Internet Routing Table: 37187
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 31202
Origin ASes announcing only one prefix: 14975
Transit ASes present in the Internet Routing Table: 5023
Transit-only ASes present in the Internet Routing Table: 116
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 24
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2838
Unregistered ASNs in the Routing Table: 280
Number of 32-bit ASNs allocated by the RIRs: 1259
Number of 32-bit ASNs visible in the Routing Table: 962
Prefixes from 32-bit ASNs in the Routing Table: 2148
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2403518264
Equivalent to 143 /8s, 66 /16s and 199 /24s
Percentage of available address space announced: 64.8
Percentage of allocated address space announced: 64.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.2
Total number of prefixes smaller than registry allocations: 147335
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85549
Total APNIC prefixes after maximum aggregation: 28780
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82606
Unique aggregates announced from the APNIC address blocks: 36745
APNIC Region origin ASes present in the Internet Routing Table: 4370
APNIC Prefixes per ASN: 18.90
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 689
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 602657985
Equivalent to 35 /8s, 235 /16s and 212 /24s
Percentage of available APNIC address space announced: 76.4
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: 141632
Total ARIN prefixes after maximum aggregation: 72838
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113841
Unique aggregates announced from the ARIN address blocks: 44982
ARIN Region origin ASes present in the Internet Routing Table: 14309
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5449
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 10
Number of ARIN addresses announced to Internet: 797723160
Equivalent to 47 /8s, 140 /16s and 74 /24s
Percentage of available ARIN address space announced: 63.4
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: 86494
Total RIPE prefixes after maximum aggregation: 47792
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78957
Unique aggregates announced from the RIPE address blocks: 50202
RIPE Region origin ASes present in the Internet Routing Table: 15497
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7738
RIPE Region transit ASes present in the Internet Routing Table: 2457
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 711
Number of RIPE addresses announced to Internet: 466104892
Equivalent to 27 /8s, 200 /16s and 50 /24s
Percentage of available RIPE address space announced: 75.1
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: 32482
Total LACNIC prefixes after maximum aggregation: 7442
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31437
Unique aggregates announced from the LACNIC address blocks: 16293
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.91
LACNIC Region origin ASes announcing only one prefix: 431
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 190
Number of LACNIC addresses announced to Internet: 81712012
Equivalent to 4 /8s, 222 /16s and 211 /24s
Percentage of available LACNIC address space announced: 54.1
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: 7637
Total AfriNIC prefixes after maximum aggregation: 1832
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6027
Unique aggregates announced from the AfriNIC address blocks: 1871
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 97
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22710016
Equivalent to 1 /8s, 90 /16s and 135 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1875 9507 605 Korea Telecom (KIX)
7545 1544 301 84 TPG Internet Pty Ltd
17974 1446 472 34 PT TELEKOMUNIKASI INDONESIA
4755 1436 378 165 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 204 Bharti Airtel Ltd.
9583 1055 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 956 162 97 Hathway IP Over Cable Interne
4808 952 2020 274 CNCGROUP IP network: China169
18101 936 116 139 Reliance Infocom Ltd Internet
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 3662 3838 262 bellsouth.net, inc.
4323 2530 1106 394 Time Warner Telecom
1785 1791 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1605 305 34 AT&T Worldnet Services
20115 1586 1554 641 Charter Communications
19262 1492 4939 300 Verizon Global Networks
7018 1361 6929 888 AT&T WorldNet Services
11492 1295 240 15 Cable One
22773 1292 2865 84 Cox Communications, Inc.
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 796 166 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 515 1780 318 UPC Distribution Services
3292 508 2013 391 TDC Tele Danmark
34984 484 97 186 Tellcom Iletisim Hizmetleri
20940 452 128 341 Akamai Technologies European
8866 447 134 26 Bulgarian Telecommunication C
8402 417 320 32 Corbina telecom
3320 412 7604 358 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 1408 262 153 TVCABLE BOGOTA
28573 1269 972 86 Types of queries are: POCs, o
8151 1242 2661 369 Uninet S.A. de C.V.
6503 1112 354 73 AVANTEL, S.A.
7303 922 465 147 Telecom Argentina Stet-France
14420 642 52 91 Types of queries are: POCs, o
22047 568 310 15 Types of queries are: POCs, o
3816 516 225 97 COLOMBIA TELECOMUNICACIONES S
27947 489 53 53 Telconet S.A
11172 488 99 81 Alestra
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 839 445 11 TEDATA
24863 776 147 39 LINKdotNET AS number
15475 433 90 8 Nile Online
36992 292 271 14 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 151 441 87 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 3662 3838 262 bellsouth.net, inc.
4323 2530 1106 394 Time Warner Telecom
23456 2148 540 1155 >>UNKNOWN<<
4766 1875 9507 605 Korea Telecom (KIX)
1785 1791 681 131 AppliedTheory Corporation
18566 1606 331 195 Covad Communications
6478 1605 305 34 AT&T Worldnet Services
20115 1586 1554 641 Charter Communications
7545 1544 301 84 TPG Internet Pty Ltd
19262 1492 4939 300 Verizon Global Networks
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 2530 2136 Time Warner Telecom
1785 1791 1660 AppliedTheory Corporation
6478 1605 1571 AT&T Worldnet Services
7545 1544 1460 TPG Internet Pty Ltd
17974 1446 1412 PT TELEKOMUNIKASI INDONESIA
18566 1606 1411 Covad Communications
11492 1295 1280 Cable One
4755 1436 1271 Videsh Sanchar Nigam Ltd. Aut
4766 1875 1270 Korea Telecom (KIX)
10620 1408 1255 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
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
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
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
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
31.0.0.0/15 8374 Polkomtel S.A.
31.2.0.0/17 8374 Polkomtel S.A.
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 /8:19 /9:12 /10:26 /11:75 /12:219
/13:447 /14:775 /15:1405 /16:11685 /17:5956 /18:9744
/19:19605 /20:25569 /21:25690 /22:34066 /23:32704 /24:185698
/25:368 /26:346 /27:165 /28:177 /29:202 /30:655
/31:57 /32:622
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2256 3662 bellsouth.net, inc.
18566 1585 1606 Covad Communications
6478 1559 1605 AT&T Worldnet Services
4323 1355 2530 Time Warner Telecom
10620 1298 1408 TVCABLE BOGOTA
11492 1244 1295 Cable One
23456 1120 2148 >>UNKNOWN<<
7011 1068 1168 Citizens Utilities
1785 1056 1791 AppliedTheory Corporation
6503 896 1112 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:297 2:79 4:18 5:1 8:352 12:2010
13:1 14:431 15:15 16:3 17:8 20:9
23:5 24:1601 27:711 31:56 32:126 33:2
34:2 37:1 38:751 39:1 40:101 41:2376
42:1 44:3 46:797 47:4 49:149 50:151
52:13 55:4 56:2 57:40 58:841 59:488
60:387 61:1159 62:1020 63:1928 64:3896 65:2335
66:4332 67:1836 68:1252 69:3045 70:746 71:349
72:1932 73:3 74:2388 75:299 76:344 77:892
78:707 79:474 80:1103 81:823 82:520 83:473
84:668 85:1058 86:606 87:788 88:345 89:1616
90:176 91:3664 92:497 93:1055 94:1290 95:788
96:459 97:253 98:825 99:35 101:49 106:1
107:4 108:78 109:947 110:530 111:678 112:324
113:385 114:518 115:705 116:949 117:675 118:764
119:1133 120:288 121:715 122:1612 123:1056 124:1275
125:1251 128:266 129:177 130:172 131:560 132:101
133:20 134:219 135:49 136:213 137:142 138:302
139:117 140:486 141:173 142:380 143:386 144:476
145:52 146:442 147:213 148:629 149:263 150:168
151:187 152:298 153:180 154:3 155:389 156:188
157:355 158:131 159:381 160:317 161:241 162:276
163:166 164:490 165:368 166:504 167:415 168:710
169:155 170:776 171:74 172:2 173:1280 174:536
175:351 177:76 178:810 180:807 181:5 182:418
183:198 184:320 185:1 186:1116 187:920 188:935
189:1040 190:4826 192:5803 193:4835 194:3515 195:3092
196:1214 197:17 198:3597 199:3889 200:5563 201:1498
202:8380 203:8455 204:4129 205:2325 206:2672 207:3005
208:3933 209:3509 210:2727 211:1368 212:2029 213:1765
214:733 215:66 216:4879 217:1636 218:561 219:384
220:1199 221:481 222:318 223:117
End of report
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