Routing Table Report 04:00 +10GMT Wed 18 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 391482
Prefixes after maximum aggregation: 168825
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191107
Total ASes present in the Internet Routing Table: 39854
Prefixes per ASN: 9.82
Origin-only ASes present in the Internet Routing Table: 32613
Origin ASes announcing only one prefix: 15524
Transit ASes present in the Internet Routing Table: 5376
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 2124
Unregistered ASNs in the Routing Table: 1076
Number of 32-bit ASNs allocated by the RIRs: 2192
Number of 32-bit ASNs visible in the Routing Table: 1865
Prefixes from 32-bit ASNs in the Routing Table: 4496
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2510126640
Equivalent to 149 /8s, 157 /16s and 126 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
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: 165701
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96879
Total APNIC prefixes after maximum aggregation: 31510
APNIC Deaggregation factor: 3.07
Prefixes being announced from the APNIC address blocks: 93229
Unique aggregates announced from the APNIC address blocks: 38963
APNIC Region origin ASes present in the Internet Routing Table: 4638
APNIC Prefixes per ASN: 20.10
APNIC Region origin ASes announcing only one prefix: 1247
APNIC Region transit ASes present in the Internet Routing Table: 726
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: 634948736
Equivalent to 37 /8s, 216 /16s and 140 /24s
Percentage of available APNIC address space announced: 80.5
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: 147445
Total ARIN prefixes after maximum aggregation: 75150
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119428
Unique aggregates announced from the ARIN address blocks: 49118
ARIN Region origin ASes present in the Internet Routing Table: 14854
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5685
ARIN Region transit ASes present in the Internet Routing Table: 1580
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804352960
Equivalent to 47 /8s, 241 /16s and 115 /24s
Percentage of available ARIN address space announced: 63.9
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: 96643
Total RIPE prefixes after maximum aggregation: 51953
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 88552
Unique aggregates announced from the RIPE address blocks: 55668
RIPE Region origin ASes present in the Internet Routing Table: 16245
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2589
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1293
Number of RIPE addresses announced to Internet: 497597128
Equivalent to 29 /8s, 168 /16s and 186 /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: 37315
Total LACNIC prefixes after maximum aggregation: 8058
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36931
Unique aggregates announced from the LACNIC address blocks: 19292
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 23.64
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 286
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 421
Number of LACNIC addresses announced to Internet: 95457928
Equivalent to 5 /8s, 176 /16s and 146 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8542
Total AfriNIC prefixes after maximum aggregation: 2082
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2090
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 4.5
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: 30827264
Equivalent to 1 /8s, 214 /16s and 99 /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 2467 11100 972 Korea Telecom (KIX)
17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1635 303 85 TPG Internet Pty Ltd
4755 1533 387 164 TATA Communications formerly
7552 1425 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
4808 1100 2050 311 CNCGROUP IP network: China169
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
18101 944 130 154 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3457 3807 205 bellsouth.net, inc.
7029 3222 1016 199 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 680 123 PaeTec Communications, Inc.
20115 1618 1552 619 Charter Communications
4323 1604 1062 382 Time Warner Telecom
22773 1517 2909 108 Cox Communications, Inc.
30036 1481 265 697 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1295 7008 845 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1710 480 15 Corbina telecom
15557 1096 2161 64 LDCOM NETWORKS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 644 1928 413 UPC Distribution Services
34984 637 188 171 BILISIM TELEKOM
31148 576 35 9 FreeNet ISP
20940 571 185 453 Akamai Technologies European
12479 553 637 53 Uni2 Autonomous System
8551 527 360 81 Bezeq International
3320 517 8157 393 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1738 321 159 TVCABLE BOGOTA
28573 1601 1068 77 NET Servicos de Comunicao S.A
8151 1463 2999 342 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 633 73 95 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 Empresa Nacional de Telecomun
6503 540 434 67 AVANTEL, S.A.
11172 529 85 106 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1031 958 13 TEDATA
24863 796 146 36 LINKdotNET AS number
6713 381 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
33776 200 11 17 Starcomms Nigeria Limited
12258 195 28 60 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 160 664 82 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3457 3807 205 bellsouth.net, inc.
7029 3222 1016 199 Windstream Communications Inc
4766 2467 11100 972 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1865 680 123 PaeTec Communications, Inc.
10620 1738 321 159 TVCABLE BOGOTA
17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1710 480 15 Corbina telecom
7545 1635 303 85 TPG Internet Pty Ltd
20115 1618 1552 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3222 3023 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1742 PaeTec Communications, Inc.
8402 1710 1695 Corbina telecom
17974 1715 1679 PT TELEKOMUNIKASI INDONESIA
10620 1738 1579 TVCABLE BOGOTA
7545 1635 1550 TPG Internet Pty Ltd
28573 1601 1524 NET Servicos de Comunicao S.A
4766 2467 1495 Korea Telecom (KIX)
7552 1425 1418 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/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 4323 Time Warner Telecom
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 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/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
37.58.0.0/20 5610 CZECH TELECOM AS - IOL
37.58.32.0/21 24923 South-East Transtelecom Joint
Complete listing at http://thyme.rand.apnic.net/current/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 /10:27 /11:80 /12:232
/13:458 /14:816 /15:1461 /16:12122 /17:6150 /18:10179
/19:20198 /20:28002 /21:28695 /22:38923 /23:36453 /24:204013
/25:1180 /26:1422 /27:783 /28:171 /29:55 /30:13
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2842 3222 Windstream Communications Inc
6389 2119 3457 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1689 1710 Corbina telecom
10620 1633 1738 TVCABLE BOGOTA
30036 1438 1481 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1066 1865 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
7011 1040 1157 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:505 2:470 4:15 5:1 6:3 8:368
12:1948 13:1 14:584 15:11 16:3 17:6
20:9 23:108 24:1713 27:1178 31:811 32:67
33:2 34:2 36:8 37:93 38:794 40:114
41:2839 42:87 43:1 44:3 46:1224 47:2
49:317 50:512 52:13 55:6 56:2 57:41
58:945 59:519 60:345 61:1243 62:943 63:1964
64:4105 65:2292 66:4382 67:2005 68:1155 69:3144
70:920 71:414 72:1803 74:2645 75:446 76:318
77:960 78:903 79:492 80:1188 81:862 82:558
83:531 84:587 85:1152 86:743 87:908 88:351
89:1552 90:258 91:4431 92:532 93:1548 94:1348
95:1095 96:395 97:298 98:789 99:38 100:18
101:134 103:645 106:10 107:133 108:124 109:1438
110:689 111:840 112:430 113:525 114:611 115:813
116:865 117:730 118:904 119:1243 120:357 121:778
122:1625 123:1049 124:1339 125:1354 128:537 129:192
130:203 131:587 132:162 133:21 134:232 135:59
136:213 137:151 138:288 139:145 140:491 141:260
142:378 143:394 144:509 145:68 146:485 147:223
148:635 149:278 150:166 151:193 152:447 153:170
154:7 155:394 156:210 157:366 158:155 159:511
160:320 161:221 162:337 163:188 164:521 165:391
166:563 167:456 168:852 169:146 170:830 171:105
172:4 173:1777 174:587 175:417 176:359 177:453
178:1188 180:1222 181:43 182:695 183:271 184:434
185:1 186:1500 187:838 188:974 189:1160 190:5335
192:5993 193:5471 194:3957 195:3312 196:1329 197:167
198:3622 199:4309 200:5641 201:1701 202:8401 203:8592
204:4351 205:2427 206:2741 207:2804 208:4016 209:3551
210:2757 211:1479 212:1975 213:1819 214:839 215:94
216:4936 217:1471 218:559 219:359 220:1247 221:559
222:324 223:270
End of report
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