[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jan 13 19:29:10 UTC 2012
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 14 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 390792
Prefixes after maximum aggregation: 168714
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 190828
Total ASes present in the Internet Routing Table: 39823
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32590
Origin ASes announcing only one prefix: 15510
Transit ASes present in the Internet Routing Table: 5382
Transit-only ASes present in the Internet Routing Table: 143
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: 2098
Unregistered ASNs in the Routing Table: 1058
Number of 32-bit ASNs allocated by the RIRs: 2178
Number of 32-bit ASNs visible in the Routing Table: 1851
Prefixes from 32-bit ASNs in the Routing Table: 4455
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2509165880
Equivalent to 149 /8s, 142 /16s and 213 /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: 165725
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96436
Total APNIC prefixes after maximum aggregation: 31482
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 92792
Unique aggregates announced from the APNIC address blocks: 38873
APNIC Region origin ASes present in the Internet Routing Table: 4636
APNIC Prefixes per ASN: 20.02
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 731
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 133
Number of APNIC addresses announced to Internet: 634071944
Equivalent to 37 /8s, 203 /16s and 43 /24s
Percentage of available APNIC address space announced: 80.4
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: 147469
Total ARIN prefixes after maximum aggregation: 75118
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119452
Unique aggregates announced from the ARIN address blocks: 49103
ARIN Region origin ASes present in the Internet Routing Table: 14847
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5677
ARIN Region transit ASes present in the Internet Routing Table: 1584
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: 804708544
Equivalent to 47 /8s, 246 /16s and 224 /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: 96603
Total RIPE prefixes after maximum aggregation: 51929
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 88466
Unique aggregates announced from the RIPE address blocks: 55570
RIPE Region origin ASes present in the Internet Routing Table: 16238
RIPE Prefixes per ASN: 5.45
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2582
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1284
Number of RIPE addresses announced to Internet: 497328072
Equivalent to 29 /8s, 164 /16s and 159 /24s
Percentage of available RIPE address space announced: 80.1
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: 37209
Total LACNIC prefixes after maximum aggregation: 8038
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36808
Unique aggregates announced from the LACNIC address blocks: 19247
LACNIC Region origin ASes present in the Internet Routing Table: 1560
LACNIC Prefixes per ASN: 23.59
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 28
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 416
Number of LACNIC addresses announced to Internet: 95387016
Equivalent to 5 /8s, 175 /16s and 125 /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: 8459
Total AfriNIC prefixes after maximum aggregation: 2074
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6501
Unique aggregates announced from the AfriNIC address blocks: 2075
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30834432
Equivalent to 1 /8s, 214 /16s and 127 /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 2473 11100 971 Korea Telecom (KIX)
17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1609 303 83 TPG Internet Pty Ltd
4755 1516 385 156 TATA Communications formerly
7552 1425 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1118 81 495 Sify Limited
4808 1103 2053 314 CNCGROUP IP network: China169
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
18101 976 130 155 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 3455 3807 207 bellsouth.net, inc.
7029 3222 1017 200 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 1489 264 696 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1299 7012 850 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 1665 480 15 Corbina telecom
15557 1096 2161 64 LDCOM NETWORKS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
31148 657 35 9 FreeNet ISP
6830 644 1928 413 UPC Distribution Services
34984 639 188 174 BILISIM TELEKOM
20940 562 182 448 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
8551 521 360 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 1579 1066 77 NET Servicos de Comunicao S.A
8151 1462 2997 343 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 634 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 541 434 68 AVANTEL, S.A.
11172 535 102 101 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 1013 958 13 TEDATA
24863 795 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 218 17 12 Ci Telecom Autonomous system
12258 195 28 60 Vodacom Internet Company
24835 188 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 3455 3807 207 bellsouth.net, inc.
7029 3222 1017 200 Windstream Communications Inc
4766 2473 11100 971 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 1665 480 15 Corbina telecom
20115 1618 1552 619 Charter Communications
7545 1609 303 83 TPG Internet Pty Ltd
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 3022 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1742 PaeTec Communications, Inc.
17974 1715 1679 PT TELEKOMUNIKASI INDONESIA
8402 1665 1650 Corbina telecom
10620 1738 1579 TVCABLE BOGOTA
7545 1609 1526 TPG Internet Pty Ltd
4766 2473 1502 Korea Telecom (KIX)
28573 1579 1502 NET Servicos de Comunicao S.A
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
37.46.80.0/21 23456 32-bit ASN transition
41.222.79.0/24 37345 MEDALLION Communications
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 /11:81 /12:234
/13:463 /14:817 /15:1459 /16:12118 /17:6147 /18:10195
/19:20203 /20:27995 /21:28534 /22:38863 /23:36419 /24:203565
/25:1181 /26:1420 /27:782 /28:171 /29:56 /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 2116 3455 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1644 1665 Corbina telecom
10620 1633 1738 TVCABLE BOGOTA
30036 1448 1489 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1066 1865 PaeTec Communications, Inc.
15557 1046 1096 LDCOM NETWORKS
7011 1042 1159 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:494 2:464 4:15 5:1 6:3 8:368
12:1950 13:1 14:586 15:11 16:3 17:6
20:9 23:98 24:1710 27:1170 31:812 32:67
33:2 34:2 36:8 37:87 38:794 40:114
41:2895 42:85 43:1 44:3 46:1216 47:3
49:317 50:506 52:13 55:7 56:2 57:41
58:946 59:491 60:344 61:1182 62:950 63:1966
64:4119 65:2298 66:4375 67:2005 68:1155 69:3149
70:918 71:427 72:1805 74:2649 75:446 76:320
77:948 78:899 79:497 80:1187 81:863 82:550
83:530 84:586 85:1155 86:748 87:908 88:338
89:1598 90:267 91:4418 92:534 93:1543 94:1351
95:1062 96:394 97:296 98:798 99:38 100:18
101:127 103:637 106:10 107:133 108:125 109:1422
110:684 111:839 112:427 113:519 114:610 115:756
116:868 117:726 118:907 119:1235 120:357 121:679
122:1624 123:1050 124:1336 125:1352 128:535 129:192
130:201 131:588 132:162 133:21 134:226 135:58
136:213 137:151 138:288 139:144 140:490 141:261
142:379 143:393 144:504 145:68 146:484 147:223
148:635 149:279 150:166 151:193 152:447 153:170
154:7 155:393 156:210 157:366 158:155 159:511
160:320 161:222 162:337 163:188 164:529 165:391
166:562 167:456 168:853 169:147 170:830 171:103
172:4 173:1778 174:589 175:418 176:348 177:454
178:1183 180:1219 181:43 182:687 183:264 184:430
185:1 186:1490 187:831 188:1034 189:1156 190:5321
192:5991 193:5462 194:3943 195:3313 196:1281 197:167
198:3627 199:4295 200:5583 201:1703 202:8417 203:8588
204:4353 205:2430 206:2734 207:2806 208:4020 209:3551
210:2742 211:1480 212:1968 213:1818 214:838 215:94
216:4938 217:1472 218:560 219:337 220:1247 221:557
222:324 223:267
End of report
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