Routing Table Report 00:00 GMT Fri 02 Sep, 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: 373921
Prefixes after maximum aggregation: 168264
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178594
Total ASes present in the Internet Routing Table: 38665
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32126
Origin ASes announcing only one prefix: 15397
Transit ASes present in the Internet Routing Table: 5161
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4392
Unregistered ASNs in the Routing Table: 674
Number of 32-bit ASNs allocated by the RIRs: 1698
Number of 32-bit ASNs visible in the Routing Table: 1378
Prefixes from 32-bit ASNs in the Routing Table: 3206
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 105
Number of addresses announced to Internet: 2303834127
Equivalent to 137 /8s, 81 /16s and 184 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 155139
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90906
Total APNIC prefixes after maximum aggregation: 29392
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 87543
Unique aggregates announced from the APNIC address blocks: 36777
APNIC Region origin ASes present in the Internet Routing Table: 4532
APNIC Prefixes per ASN: 19.32
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 78
Number of APNIC addresses announced to Internet: 609760768
Equivalent to 36 /8s, 88 /16s and 54 /24s
Percentage of available APNIC address space announced: 77.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 146340
Total ARIN prefixes after maximum aggregation: 75497
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117897
Unique aggregates announced from the ARIN address blocks: 44752
ARIN Region origin ASes present in the Internet Routing Table: 14631
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5603
ARIN Region transit ASes present in the Internet Routing Table: 1509
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666671384
Equivalent to 39 /8s, 188 /16s and 153 /24s
Percentage of available ARIN address space announced: 53.0
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: 90024
Total RIPE prefixes after maximum aggregation: 50051
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82327
Unique aggregates announced from the RIPE address blocks: 52545
RIPE Region origin ASes present in the Internet Routing Table: 15948
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7935
RIPE Region transit ASes present in the Internet Routing Table: 2490
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 983
Number of RIPE addresses announced to Internet: 473679564
Equivalent to 28 /8s, 59 /16s and 198 /24s
Percentage of available RIPE address space announced: 76.3
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: 34893
Total LACNIC prefixes after maximum aggregation: 7753
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34118
Unique aggregates announced from the LACNIC address blocks: 17537
LACNIC Region origin ASes present in the Internet Routing Table: 1514
LACNIC Prefixes per ASN: 22.54
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 301
Number of LACNIC addresses announced to Internet: 87638280
Equivalent to 5 /8s, 57 /16s and 65 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8375
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6483
Unique aggregates announced from the AfriNIC address blocks: 2020
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26818048
Equivalent to 1 /8s, 153 /16s and 54 /24s
Percentage of available AfriNIC address space announced: 40.0
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
17974 1965 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
7545 1574 301 83 TPG Internet Pty Ltd
4755 1535 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1199 337 187 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
17488 1045 192 150 Hathway IP Over Cable Interne
7552 999 1062 11 Vietel Corporation
18101 951 118 139 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 3540 3817 228 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1823 681 124 AppliedTheory Corporation
7029 1622 1021 243 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
20115 1589 1539 633 Charter Communications
22773 1453 2907 99 Cox Communications, Inc.
19262 1392 4716 399 Verizon Global Networks
7018 1350 7069 886 AT&T WorldNet Services
2386 1222 515 881 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 1046 800 193 KPNQwest Backbone AS
34984 541 107 182 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Distribution Services
3292 520 2079 403 TDC Tele Danmark
20940 493 147 384 Akamai Technologies European
12479 463 593 7 Uni2 Autonomous System
8866 459 133 26 Bulgarian Telecommunication C
3320 429 8152 373 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
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 1628 298 154 TVCABLE BOGOTA
8151 1450 2761 352 Uninet S.A. de C.V.
28573 1281 1003 71 Types of queries are: POCs, o
7303 1058 578 170 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 602 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 571 56 76 Telconet S.A
10481 548 430 20 Prima S.A.
3816 534 232 97 COLOMBIA TELECOMUNICACIONES S
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
24863 809 147 42 LINKdotNET AS number
8452 627 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 14 Etisalat MISR
3741 266 937 227 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 195 28 62 YEBO-AS
24835 181 70 12 RAYA Telecom - Egypt
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 3540 3817 228 bellsouth.net, inc.
23456 3206 754 1711 >>UNKNOWN<<
17974 1965 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1823 681 124 AppliedTheory Corporation
10620 1628 298 154 TVCABLE BOGOTA
7029 1622 1021 243 Windstream Communications Inc
4323 1614 1101 396 Time Warner Telecom
20115 1589 1539 633 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1965 1934 PT TELEKOMUNIKASI INDONESIA
1785 1823 1699 AppliedTheory Corporation
18566 1912 1675 Covad Communications
23456 3206 1495 >>UNKNOWN<<
7545 1574 1491 TPG Internet Pty Ltd
10620 1628 1474 TVCABLE BOGOTA
7029 1622 1379 Windstream Communications Inc
4755 1535 1369 Videsh Sanchar Nigam Ltd. Aut
22773 1453 1354 Cox Communications, Inc.
4766 1942 1295 Korea Telecom (KIX)
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 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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:27 /11:81 /12:231
/13:461 /14:804 /15:1444 /16:12062 /17:6193 /18:10247
/19:20145 /20:27747 /21:27234 /22:36147 /23:35018 /24:194303
/25:78 /26:86 /27:112 /28:287 /29:106 /30:511
/31:72 /32:493
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2179 3540 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1573 3206 >>UNKNOWN<<
10620 1523 1628 TVCABLE BOGOTA
7029 1302 1622 Windstream Communications Inc
11492 1107 1153 Cable One
1785 1053 1823 AppliedTheory Corporation
7011 1031 1154 Citizens Utilities
22773 942 1453 Cox Communications, Inc.
30036 927 955 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:363 2:47 4:19 5:1 6:3 8:346
12:1962 13:1 14:563 15:13 16:3 17:5
20:10 23:31 24:1683 27:932 31:517 32:149
33:3 34:2 36:4 38:737 40:107 41:2478
42:53 44:3 46:1082 47:3 49:229 50:426
52:13 54:2 55:4 56:2 57:45 58:878
59:502 60:376 61:1176 62:1106 63:1966 64:4063
65:2307 66:3981 67:1969 68:1285 69:3235 70:826
71:374 72:1889 73:1 74:2468 75:342 76:347
77:868 78:706 79:485 80:1124 81:835 82:507
83:483 84:698 85:1089 86:504 87:864 88:343
89:1554 90:231 91:4074 92:528 93:1147 94:1382
95:887 96:423 97:269 98:941 99:37 101:201
103:250 106:79 107:39 108:82 109:1027 110:674
111:749 112:317 113:433 114:570 115:704 116:1013
117:680 118:886 119:1215 120:333 121:704 122:1622
123:993 124:1344 125:1287 128:249 129:181 130:166
131:580 132:118 133:21 134:215 135:53 136:213
137:135 138:294 139:129 140:491 141:286 142:392
143:427 144:487 145:61 146:463 147:233 148:686
149:250 150:154 151:190 152:441 153:179 154:6
155:398 156:201 157:355 158:141 159:450 160:319
161:206 162:335 163:167 164:514 165:396 166:539
167:437 168:748 169:150 170:846 171:84 172:1
173:1661 174:640 175:400 176:156 177:249 178:1021
180:1021 181:25 182:612 183:244 184:351 185:1
186:1404 187:696 188:937 189:885 190:5149 192:5956
193:5010 194:3548 195:3080 196:1238 197:144 198:3598
199:4100 200:5523 201:1535 202:8528 203:8527 204:4253
205:2350 206:2740 207:2849 208:4158 209:3522 210:2716
211:1464 212:2134 213:1773 214:763 215:76 216:4917
217:1630 218:552 219:345 220:1198 221:517 222:348
223:259
End of report
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