[AusNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Sat Oct 29 06:17:19 EST 2011
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,
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 29 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 379556
Prefixes after maximum aggregation: 166311
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 186116
Total ASes present in the Internet Routing Table: 39180
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32352
Origin ASes announcing only one prefix: 15498
Transit ASes present in the Internet Routing Table: 5266
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 1580
Unregistered ASNs in the Routing Table: 843
Number of 32-bit ASNs allocated by the RIRs: 1911
Number of 32-bit ASNs visible in the Routing Table: 1562
Prefixes from 32-bit ASNs in the Routing Table: 3627
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 95
Number of addresses announced to Internet: 2489057440
Equivalent to 148 /8s, 92 /16s and 0 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 159572
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94855
Total APNIC prefixes after maximum aggregation: 30982
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 91300
Unique aggregates announced from the APNIC address blocks: 38074
APNIC Region origin ASes present in the Internet Routing Table: 4590
APNIC Prefixes per ASN: 19.89
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 721
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: 98
Number of APNIC addresses announced to Internet: 629428896
Equivalent to 37 /8s, 132 /16s and 82 /24s
Percentage of available APNIC address space announced: 79.8
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: 145811
Total ARIN prefixes after maximum aggregation: 74492
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117702
Unique aggregates announced from the ARIN address blocks: 48191
ARIN Region origin ASes present in the Internet Routing Table: 14743
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5663
ARIN Region transit ASes present in the Internet Routing Table: 1558
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: 12
Number of ARIN addresses announced to Internet: 804671488
Equivalent to 47 /8s, 246 /16s and 80 /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: 91098
Total RIPE prefixes after maximum aggregation: 50841
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 83738
Unique aggregates announced from the RIPE address blocks: 54302
RIPE Region origin ASes present in the Internet Routing Table: 16072
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7969
RIPE Region transit ASes present in the Internet Routing Table: 2528
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: 1092
Number of RIPE addresses announced to Internet: 491265472
Equivalent to 29 /8s, 72 /16s and 29 /24s
Percentage of available RIPE address space announced: 79.1
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: 35470
Total LACNIC prefixes after maximum aggregation: 7898
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 34922
Unique aggregates announced from the LACNIC address blocks: 18132
LACNIC Region origin ASes present in the Internet Routing Table: 1540
LACNIC Prefixes per ASN: 22.68
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 356
Number of LACNIC addresses announced to Internet: 92626368
Equivalent to 5 /8s, 133 /16s and 93 /24s
Percentage of available LACNIC address space announced: 61.3
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: 8526
Total AfriNIC prefixes after maximum aggregation: 2021
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6631
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.40
AfriNIC Region origin ASes announcing only one prefix: 158
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: 27830528
Equivalent to 1 /8s, 168 /16s and 169 /24s
Percentage of available AfriNIC address space announced: 41.5
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 2507 11096 967 Korea Telecom (KIX)
17974 1884 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1611 303 84 TPG Internet Pty Ltd
4755 1539 637 174 TATA Communications formerly
7552 1393 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1090 2103 312 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 953 166 150 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 3544 3814 220 bellsouth.net, inc.
7029 2329 1016 197 Windstream Communications Inc
18566 2097 383 177 Covad Communications
1785 1841 680 122 PaeTec Communications, Inc.
4323 1623 1078 388 Time Warner Telecom
20115 1595 1546 620 Charter Communications
22773 1458 2907 100 Cox Communications, Inc.
19262 1395 4728 400 Verizon Global Networks
30036 1393 253 671 Mediacom Communications Corp
7018 1317 7029 861 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 1500 352 13 Corbina telecom
6830 653 1927 415 UPC Distribution Services
34984 590 108 180 BILISIM TELEKOM
20940 547 182 422 Akamai Technologies European
3320 506 8169 386 Deutsche Telekom AG
12479 479 596 9 Uni2 Autonomous System
3292 478 2074 405 TDC Tele Danmark
8866 461 133 26 Bulgarian Telecommunication C
8551 403 354 44 Bezeq International
31148 401 21 111 FreeNet ISP
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 1699 314 156 TVCABLE BOGOTA
28573 1473 1040 72 NET Servicos de Comunicao S.A
8151 1417 2927 348 UniNet S.A. de C.V.
7303 1231 748 177 Telecom Argentina Stet-France
27947 588 72 83 Telconet S.A
22047 580 322 17 VTR PUNTO NET S.A.
6503 572 450 69 AVANTEL, S.A.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 538 233 95 Empresa Nacional de Telecomun
11172 525 86 96 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
24863 802 146 36 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 444 74 8 Nile Online
36992 299 415 20 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 221 13 8 Starcomms Nigeria Limited
29571 219 18 14 Ci Telecom Autonomous system
12258 196 28 57 Vodacom Internet Company
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 3544 3814 220 bellsouth.net, inc.
4766 2507 11096 967 Korea Telecom (KIX)
7029 2329 1016 197 Windstream Communications Inc
18566 2097 383 177 Covad Communications
17974 1884 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1841 680 122 PaeTec Communications, Inc.
10620 1699 314 156 TVCABLE BOGOTA
4323 1623 1078 388 Time Warner Telecom
7545 1611 303 84 TPG Internet Pty Ltd
20115 1595 1546 620 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 2329 2132 Windstream Communications Inc
18566 2097 1920 Covad Communications
17974 1884 1851 PT TELEKOMUNIKASI INDONESIA
1785 1841 1719 PaeTec Communications, Inc.
10620 1699 1543 TVCABLE BOGOTA
4766 2507 1540 Korea Telecom (KIX)
7545 1611 1527 TPG Internet Pty Ltd
8402 1500 1487 Corbina telecom
28573 1473 1401 NET Servicos de Comunicao S.A
7552 1393 1385 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
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
41.79.132.0/23 30969 Zimbabwe OnLine (Private) Ltd
41.79.132.0/22 30969 Zimbabwe OnLine (Private) Ltd
41.79.134.0/23 30969 Zimbabwe OnLine (Private) Ltd
41.222.79.0/24 36938 >>UNKNOWN<<
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 /12:236
/13:465 /14:809 /15:1427 /16:12024 /17:6073 /18:10088
/19:19938 /20:27559 /21:27543 /22:37225 /23:35231 /24:197353
/25:1167 /26:1351 /27:757 /28:162 /29:4 /30:0
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3544 bellsouth.net, inc.
18566 2046 2097 Covad Communications
7029 1999 2329 Windstream Communications Inc
10620 1594 1699 TVCABLE BOGOTA
8402 1476 1500 Corbina telecom
30036 1354 1393 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1056 1841 PaeTec Communications, Inc.
7011 1050 1168 Citizens Utilities
22773 946 1458 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:411 2:490 4:15 5:1 6:3 8:361
12:1954 13:1 14:544 15:11 16:3 17:7
20:9 23:60 24:1683 27:972 31:626 32:61
33:2 34:2 36:4 38:757 40:110 41:2664
42:53 44:3 46:1007 47:3 49:291 50:438
52:13 55:6 56:2 57:40 58:884 59:494
60:363 61:1174 62:1087 63:1950 64:4058 65:2305
66:4275 67:1982 68:1154 69:3202 70:883 71:382
72:1805 74:2604 75:393 76:318 77:879 78:868
79:452 80:1134 81:838 82:502 83:527 84:619
85:1122 86:403 87:890 88:353 89:1607 90:237
91:4242 92:530 93:1532 94:1302 95:1077 96:434
97:284 98:928 99:37 101:220 103:413 106:70
107:78 108:72 109:1055 110:665 111:795 112:334
113:487 114:617 115:710 116:880 117:721 118:901
119:1262 120:339 121:693 122:1566 123:1016 124:1354
125:1361 128:243 129:185 130:164 131:626 132:146
133:21 134:220 135:54 136:213 137:140 138:286
139:123 140:489 141:309 142:389 143:419 144:495
145:63 146:461 147:216 148:642 149:267 150:167
151:194 152:447 153:178 154:7 155:389 156:208
157:358 158:154 159:484 160:331 161:214 162:341
163:173 164:511 165:370 166:539 167:435 168:742
169:146 170:873 171:86 172:4 173:1718 174:673
175:423 176:282 177:356 178:1079 180:1121 181:36
182:653 183:220 184:379 185:1 186:1301 187:707
188:949 189:867 190:5144 192:5933 193:5037 194:3560
195:3115 196:1230 197:164 198:3627 199:4166 200:5519
201:1687 202:8572 203:8480 204:4306 205:2363 206:2674
207:2824 208:4027 209:3575 210:2713 211:1459 212:2086
213:1777 214:796 215:96 216:4924 217:1602 218:563
219:342 220:1250 221:515 222:343 223:271
End of report
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