Routing Table Report 00:00 GMT Thu 12 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: 393954
Prefixes after maximum aggregation: 170010
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 185044
Total ASes present in the Internet Routing Table: 39807
Prefixes per ASN: 9.90
Origin-only ASes present in the Internet Routing Table: 32705
Origin ASes announcing only one prefix: 15528
Transit ASes present in the Internet Routing Table: 5259
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6617
Unregistered ASNs in the Routing Table: 1068
Number of 32-bit ASNs allocated by the RIRs: 2171
Number of 32-bit ASNs visible in the Routing Table: 1843
Prefixes from 32-bit ASNs in the Routing Table: 4448
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2337166046
Equivalent to 139 /8s, 78 /16s and 82 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 165514
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94588
Total APNIC prefixes after maximum aggregation: 30375
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 91019
Unique aggregates announced from the APNIC address blocks: 37389
APNIC Region origin ASes present in the Internet Routing Table: 4618
APNIC Prefixes per ASN: 19.71
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 725
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 129
Number of APNIC addresses announced to Internet: 618039808
Equivalent to 36 /8s, 214 /16s and 138 /24s
Percentage of available APNIC address space announced: 78.4
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: 150093
Total ARIN prefixes after maximum aggregation: 77245
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121888
Unique aggregates announced from the ARIN address blocks: 46197
ARIN Region origin ASes present in the Internet Routing Table: 14856
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1523
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 666642696
Equivalent to 39 /8s, 188 /16s and 41 /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: 98512
Total RIPE prefixes after maximum aggregation: 52180
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 89638
Unique aggregates announced from the RIPE address blocks: 54182
RIPE Region origin ASes present in the Internet Routing Table: 16250
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7989
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1282
Number of RIPE addresses announced to Internet: 479791500
Equivalent to 28 /8s, 153 /16s and 9 /24s
Percentage of available RIPE address space announced: 77.3
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: 37654
Total LACNIC prefixes after maximum aggregation: 8073
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 37151
Unique aggregates announced from the LACNIC address blocks: 19155
LACNIC Region origin ASes present in the Internet Routing Table: 1560
LACNIC Prefixes per ASN: 23.81
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 414
Number of LACNIC addresses announced to Internet: 95236864
Equivalent to 5 /8s, 173 /16s and 51 /24s
Percentage of available LACNIC address space announced: 63.1
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: 8419
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6449
Unique aggregates announced from the AfriNIC address blocks: 2041
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 12.72
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30792192
Equivalent to 1 /8s, 213 /16s and 218 /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 1914 11097 661 Korea Telecom (KIX)
17974 1722 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 86 TPG Internet Pty Ltd
4755 1518 385 157 Videsh Sanchar Nigam Ltd. Aut
7552 1194 1062 11 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1118 81 492 Sify Limited
24560 1010 384 167 Bharti Airtel Ltd.
18101 976 130 155 Reliance Infocom Ltd Internet
17488 945 161 224 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 3469 3811 210 bellsouth.net, inc.
7029 3219 1020 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1866 680 124 AppliedTheory Corporation
20115 1617 1552 619 Charter Communications
4323 1602 1048 381 Time Warner Telecom
22773 1514 2909 107 Cox Communications, Inc.
30036 1487 264 694 Mediacom Communications Corp
19262 1389 4683 401 Verizon Global Networks
7018 1307 7030 858 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 1648 480 15 Corbina telecom
15557 1096 2161 64 LDCOM NETWORKS
286 1094 806 197 KPNQwest Backbone AS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 645 1928 413 UPC Distribution Services
34984 638 188 174 Tellcom Iletisim Hizmetleri
20940 558 182 451 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
8551 549 360 81 Bezeq International
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 1726 319 158 TVCABLE BOGOTA
28573 1570 1065 77 Types of queries are: POCs, o
8151 1504 2978 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 635 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 237 92 COLOMBIA TELECOMUNICACIONES S
7738 551 1050 31 Telecomunicacoes da Bahia S.A
6503 550 434 69 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 1022 958 13 TEDATA
24863 796 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 216 17 12 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 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 3469 3811 210 bellsouth.net, inc.
7029 3219 1020 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1914 11097 661 Korea Telecom (KIX)
1785 1866 680 124 AppliedTheory Corporation
10620 1726 319 158 TVCABLE BOGOTA
17974 1722 503 37 PT TELEKOMUNIKASI INDONESIA
8402 1648 480 15 Corbina telecom
7545 1627 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 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 3219 3019 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1866 1742 AppliedTheory Corporation
17974 1722 1685 PT TELEKOMUNIKASI INDONESIA
8402 1648 1633 Corbina telecom
10620 1726 1568 TVCABLE BOGOTA
7545 1627 1541 TPG Internet Pty Ltd
28573 1570 1493 Types of queries are: POCs, o
22773 1514 1407 Cox Communications, Inc.
4755 1518 1361 Videsh Sanchar Nigam Ltd. Aut
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
24.157.16.0/20 36423 San Juan Cable, LLC
37.34.48.0/21 35470 XL Network
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 /12:236
/13:465 /14:822 /15:1489 /16:12252 /17:6401 /18:10546
/19:20727 /20:29157 /21:28807 /22:39167 /23:36647 /24:205343
/25:68 /26:82 /27:107 /28:298 /29:113 /30:546
/31:52 /32:489
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2841 3219 Windstream Communications Inc
6389 2122 3469 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1627 1648 Corbina telecom
10620 1621 1726 TVCABLE BOGOTA
30036 1446 1487 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1066 1866 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1042 1159 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:495 2:467 4:19 5:1 6:3 8:371
12:1953 13:1 14:588 15:11 16:3 17:6
20:9 23:96 24:1714 27:1177 31:870 32:122
33:2 34:2 36:8 37:82 38:799 39:1
40:114 41:2851 42:86 43:1 44:3 46:1218
47:3 49:319 50:506 52:13 55:6 56:2
57:51 58:949 59:490 60:344 61:1194 62:968
63:1982 64:4141 65:2308 66:4401 67:2033 68:1338
69:3262 70:965 71:427 72:1817 73:1 74:2699
75:459 76:332 77:945 78:902 79:519 80:1191
81:869 82:552 83:538 84:587 85:1171 86:756
87:913 88:352 89:1617 90:261 91:4425 92:534
93:1548 94:1359 95:1066 96:397 97:296 98:801
99:38 100:18 101:251 103:641 106:10 107:131
108:128 109:1441 110:708 111:839 112:430 113:526
114:618 115:759 116:894 117:727 118:916 119:1271
120:381 121:699 122:1622 123:1053 124:1368 125:1308
128:522 129:195 130:193 131:589 132:162 133:21
134:228 135:58 136:213 137:151 138:288 139:155
140:491 141:263 142:381 143:401 144:496 145:68
146:485 147:234 148:688 149:276 150:165 151:193
152:447 153:170 154:7 155:409 156:210 157:368
158:155 159:511 160:320 161:222 162:337 163:188
164:528 165:412 166:562 167:456 168:832 169:148
170:826 171:101 172:4 173:1795 174:597 175:441
176:379 177:452 178:1175 180:1247 181:43 182:691
183:266 184:430 185:1 186:1495 187:830 188:1030
189:1162 190:5285 192:6007 193:5486 194:3988 195:3368
196:1295 197:172 198:3635 199:4299 200:5572 201:1697
202:8533 203:8611 204:4353 205:2436 206:2734 207:2812
208:4043 209:3572 210:2775 211:1500 212:2005 213:1826
214:838 215:94 216:4977 217:1485 218:570 219:338
220:1255 221:564 222:327 223:269
End of report
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