Routing Table Report 00:00 GMT Mon 23 Jan, 2012
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: 397016
Prefixes after maximum aggregation: 170322
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191307
Total ASes present in the Internet Routing Table: 39894
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32696
Origin ASes announcing only one prefix: 15521
Transit ASes present in the Internet Routing Table: 5323
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 6746
Unregistered ASNs in the Routing Table: 1100
Number of 32-bit ASNs allocated by the RIRs: 2208
Number of 32-bit ASNs visible in the Routing Table: 1875
Prefixes from 32-bit ASNs in the Routing Table: 4528
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2511633638
Equivalent to 149 /8s, 180 /16s and 124 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166352
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95863
Total APNIC prefixes after maximum aggregation: 30513
APNIC Deaggregation factor: 3.14
Prefixes being announced from the APNIC address blocks: 92228
Unique aggregates announced from the APNIC address blocks: 38982
APNIC Region origin ASes present in the Internet Routing Table: 4619
APNIC Prefixes per ASN: 19.97
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 725
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 133
Number of APNIC addresses announced to Internet: 635204864
Equivalent to 37 /8s, 220 /16s and 117 /24s
Percentage of available APNIC address space announced: 80.6
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: 150413
Total ARIN prefixes after maximum aggregation: 77342
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122205
Unique aggregates announced from the ARIN address blocks: 49148
ARIN Region origin ASes present in the Internet Routing Table: 14870
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5664
ARIN Region transit ASes present in the Internet Routing Table: 1537
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805121544
Equivalent to 47 /8s, 253 /16s and 46 /24s
Percentage of available ARIN address space announced: 64.0
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: 99417
Total RIPE prefixes after maximum aggregation: 52245
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 90445
Unique aggregates announced from the RIPE address blocks: 55747
RIPE Region origin ASes present in the Internet Routing Table: 16282
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2577
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1303
Number of RIPE addresses announced to Internet: 497948556
Equivalent to 29 /8s, 174 /16s and 23 /24s
Percentage of available RIPE address space announced: 80.2
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: 37842
Total LACNIC prefixes after maximum aggregation: 8059
LACNIC Deaggregation factor: 4.70
Prefixes being announced from the LACNIC address blocks: 37389
Unique aggregates announced from the LACNIC address blocks: 19305
LACNIC Region origin ASes present in the Internet Routing Table: 1564
LACNIC Prefixes per ASN: 23.91
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 421
Number of LACNIC addresses announced to Internet: 95528456
Equivalent to 5 /8s, 177 /16s and 166 /24s
Percentage of available LACNIC address space announced: 63.3
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: 8734
Total AfriNIC prefixes after maximum aggregation: 2090
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6765
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.3
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: 30805248
Equivalent to 1 /8s, 214 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1911 11097 664 Korea Telecom (KIX)
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1634 303 85 TPG Internet Pty Ltd
4755 1524 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1424 1064 7 Vietel Corporation
9829 1162 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
4808 1049 1992 290 CNCGROUP IP network: China169
24560 1011 384 167 Bharti Airtel Ltd.
17488 949 161 223 Hathway IP Over Cable Interne
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 3445 3807 204 bellsouth.net, inc.
7029 3264 1042 211 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 679 122 AppliedTheory Corporation
20115 1619 1553 615 Charter Communications
4323 1608 1079 384 Time Warner Telecom
22773 1488 2909 108 Cox Communications, Inc.
30036 1474 263 720 Mediacom Communications Corp
19262 1385 4683 400 Verizon Global Networks
7018 1306 7026 857 AT&T WorldNet Services
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
8402 1691 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
286 1110 806 203 KPNQwest Backbone AS
15557 1095 2161 64 LDCOM NETWORKS
6830 644 1927 412 UPC Distribution Services
34984 638 188 172 Tellcom Iletisim Hizmetleri
20940 579 189 462 Akamai Technologies European
8551 576 360 81 Bezeq International
12479 557 639 55 Uni2 Autonomous System
9116 541 326 32 Goldenlines main autonomous s
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 1723 321 167 TVCABLE BOGOTA
28573 1610 1068 77 Types of queries are: POCs, o
8151 1502 2981 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 644 73 95 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 555 238 92 COLOMBIA TELECOMUNICACIONES S
7738 551 1050 31 Telecomunicacoes da Bahia S.A
6503 547 434 70 AVANTEL, S.A.
10481 547 429 25 Prima 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 1053 958 13 TEDATA
24863 797 146 36 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 243 32 6 Sudatel Internet Exchange Aut
33776 234 13 14 Starcomms Nigeria Limited
29571 215 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 189 80 8 RAYA Telecom - Egypt
16637 161 664 83 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 3445 3807 204 bellsouth.net, inc.
7029 3264 1042 211 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1911 11097 664 Korea Telecom (KIX)
1785 1865 679 122 AppliedTheory Corporation
10620 1723 321 167 TVCABLE BOGOTA
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1691 480 15 Corbina telecom
7545 1634 303 85 TPG Internet Pty Ltd
20115 1619 1553 615 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
7029 3264 3053 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1743 AppliedTheory Corporation
17974 1718 1682 PT TELEKOMUNIKASI INDONESIA
8402 1691 1676 Corbina telecom
10620 1723 1556 TVCABLE BOGOTA
7545 1634 1549 TPG Internet Pty Ltd
28573 1610 1533 Types of queries are: POCs, o
7552 1424 1417 Vietel Corporation
22773 1488 1380 Cox Communications, Inc.
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /11:80 /12:232
/13:458 /14:822 /15:1492 /16:12281 /17:6415 /18:10623
/19:20848 /20:29289 /21:29457 /22:39630 /23:37217 /24:206359
/25:66 /26:83 /27:108 /28:291 /29:115 /30:549
/31:51 /32:491
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2866 3264 Windstream Communications Inc
6389 2115 3445 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1670 1691 Corbina telecom
10620 1618 1723 TVCABLE BOGOTA
30036 1432 1474 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1067 1865 AppliedTheory Corporation
15557 1046 1095 LDCOM NETWORKS
7011 1031 1148 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:506 2:463 4:19 5:1 6:3 8:379
12:1962 13:1 14:586 15:11 16:3 17:6
20:9 23:117 24:1720 27:1179 31:877 32:124
33:2 34:2 36:8 37:102 38:799 39:1
40:114 41:2976 42:88 43:1 44:3 46:1254
47:3 49:323 50:520 52:13 54:1 55:6
56:3 57:51 58:954 59:492 60:346 61:1191
62:934 63:1992 64:4138 65:2292 66:4430 67:2039
68:1341 69:3255 70:966 71:428 72:1831 73:1
74:2708 75:458 76:333 77:970 78:921 79:528
80:1198 81:870 82:573 83:536 84:589 85:1158
86:749 87:917 88:357 89:1565 90:257 91:4450
92:534 93:1550 94:1325 95:1129 96:428 97:298
98:798 99:38 100:18 101:255 103:668 106:10
107:135 108:130 109:1471 110:704 111:841 112:418
113:526 114:608 115:767 116:897 117:741 118:920
119:1284 120:356 121:701 122:1626 123:1063 124:1369
125:1357 128:526 129:186 130:214 131:546 132:162
133:21 134:231 135:58 136:213 137:153 138:288
139:157 140:489 141:260 142:380 143:400 144:504
145:68 146:486 147:235 148:693 149:281 150:165
151:193 152:446 153:170 154:7 155:412 156:210
157:369 158:154 159:509 160:326 161:233 162:340
163:188 164:527 165:414 166:560 167:456 168:852
169:148 170:836 171:106 172:4 173:1787 174:590
175:437 176:368 177:459 178:1208 180:1253 181:43
182:708 183:274 184:397 185:1 186:1507 187:832
188:969 189:1160 190:5379 192:6013 193:5493 194:4243
195:3450 196:1286 197:172 198:3626 199:4333 200:5643
201:1688 202:8492 203:8613 204:4352 205:2435 206:2772
207:2812 208:4041 209:3583 210:2773 211:1484 212:1973
213:1837 214:839 215:95 216:5001 217:1480 218:561
219:342 220:1257 221:558 222:326 223:270
End of report
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