[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 27 19:10:37 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 28 Jul, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 419174
Prefixes after maximum aggregation: 176627
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 204455
Total ASes present in the Internet Routing Table: 41639
Prefixes per ASN: 10.07
Origin-only ASes present in the Internet Routing Table: 33374
Origin ASes announcing only one prefix: 15702
Transit ASes present in the Internet Routing Table: 5601
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 32
Max AS path prepend of ASN ( 48687) 24
Prefixes from unregistered ASNs in the Routing Table: 382
Unregistered ASNs in the Routing Table: 146
Number of 32-bit ASNs allocated by the RIRs: 3041
Number of 32-bit ASNs visible in the Routing Table: 2664
Prefixes from 32-bit ASNs in the Routing Table: 6906
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 170
Number of addresses announced to Internet: 2582312876
Equivalent to 153 /8s, 234 /16s and 247 /24s
Percentage of available address space announced: 69.7
Percentage of allocated address space announced: 69.7
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 146088
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102575
Total APNIC prefixes after maximum aggregation: 32799
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 103070
Unique aggregates announced from the APNIC address blocks: 42296
APNIC Region origin ASes present in the Internet Routing Table: 4721
APNIC Prefixes per ASN: 21.83
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 754
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 259
Number of APNIC addresses announced to Internet: 705852800
Equivalent to 42 /8s, 18 /16s and 117 /24s
Percentage of available APNIC address space announced: 82.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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, 150/8, 153/8,
163/8, 171/8, 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: 153020
Total ARIN prefixes after maximum aggregation: 77710
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 154089
Unique aggregates announced from the ARIN address blocks: 68810
ARIN Region origin ASes present in the Internet Routing Table: 15208
ARIN Prefixes per ASN: 10.13
ARIN Region origin ASes announcing only one prefix: 5776
ARIN Region transit ASes present in the Internet Routing Table: 1608
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 16
Number of ARIN addresses announced to Internet: 1083040640
Equivalent to 64 /8s, 141 /16s and 227 /24s
Percentage of available ARIN address space announced: 57.3
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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 104106
Total RIPE prefixes after maximum aggregation: 55508
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 106284
Unique aggregates announced from the RIPE address blocks: 67918
RIPE Region origin ASes present in the Internet Routing Table: 16711
RIPE Prefixes per ASN: 6.36
RIPE Region origin ASes announcing only one prefix: 8098
RIPE Region transit ASes present in the Internet Routing Table: 2716
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1746
Number of RIPE addresses announced to Internet: 637676548
Equivalent to 38 /8s, 2 /16s and 44 /24s
Percentage of available RIPE address space announced: 92.7
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
59392-61439, 196608-199679
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 42912
Total LACNIC prefixes after maximum aggregation: 8381
LACNIC Deaggregation factor: 5.12
Prefixes being announced from the LACNIC address blocks: 45634
Unique aggregates announced from the LACNIC address blocks: 21883
LACNIC Region origin ASes present in the Internet Routing Table: 1616
LACNIC Prefixes per ASN: 28.24
LACNIC Region origin ASes announcing only one prefix: 424
LACNIC Region transit ASes present in the Internet Routing Table: 313
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 637
Number of LACNIC addresses announced to Internet: 113013416
Equivalent to 6 /8s, 188 /16s and 114 /24s
Percentage of available LACNIC address space announced: 67.4
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9495
Total AfriNIC prefixes after maximum aggregation: 2175
AfriNIC Deaggregation factor: 4.37
Prefixes being announced from the AfriNIC address blocks: 9927
Unique aggregates announced from the AfriNIC address blocks: 3399
AfriNIC Region origin ASes present in the Internet Routing Table: 550
AfriNIC Prefixes per ASN: 18.05
AfriNIC Region origin ASes announcing only one prefix: 166
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 41353984
Equivalent to 2 /8s, 119 /16s and 3 /24s
Percentage of available AfriNIC address space announced: 41.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2759 11123 1252 Korea Telecom (KIX)
17974 2274 569 90 PT TELEKOMUNIKASI INDONESIA
7545 1703 301 86 TPG Internet Pty Ltd
4755 1614 388 163 TATA Communications formerly
9829 1306 1085 26 BSNL National Internet Backbo
9583 1160 87 508 Sify Limited
7552 1128 1062 11 Vietel Corporation
4808 1117 2052 317 CNCGROUP IP network: China169
24560 1038 385 165 Bharti Airtel Ltd., Telemedia
9498 991 294 73 BHARTI Airtel Ltd.
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
7029 3412 986 155 Windstream Communications Inc
6389 3383 3773 186 bellsouth.net, inc.
18566 2088 382 181 Covad Communications
1785 1939 681 130 PaeTec Communications, Inc.
22773 1698 2914 125 Cox Communications, Inc.
20115 1647 1570 611 Charter Communications
4323 1575 1028 383 Time Warner Telecom
30036 1404 274 788 Mediacom Communications Corp
7018 1255 10040 822 AT&T WorldNet Services
11492 1192 217 350 Cable One
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 1595 544 16 Corbina telecom
12479 808 749 92 Uni2 Autonomous System
34984 735 189 177 BILISIM TELEKOM
6830 715 2310 446 UPC Distribution Services
20940 707 228 554 Akamai Technologies European
31148 706 37 9 FreeNet ISP
2118 632 97 14 EUnet/RELCOM Autonomous Syste
13188 613 100 9 Educational Network
8551 579 364 61 Bezeq International
3320 502 8443 411 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
28573 2044 1226 58 NET Servicos de Comunicao S.A
10620 2030 349 213 TVCABLE BOGOTA
6503 1527 419 67 AVANTEL, S.A.
8151 1470 3069 350 UniNet S.A. de C.V.
7303 1458 934 196 Telecom Argentina Stet-France
6458 882 81 15 GUATEL
27947 719 74 95 Telconet S.A
11172 644 91 75 Servicios Alestra S.A de C.V
3816 597 250 84 Empresa Nacional de Telecomun
22047 583 326 15 VTR PUNTO NET S.A.
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 1030 958 13 TEDATA
24863 859 274 32 LINKdotNET AS number
6713 509 650 19 Itissalat Al-MAGHRIB
36998 483 48 3 MOBITEL
24835 286 80 8 RAYA Telecom - Egypt
3741 262 905 223 The Internet Solution
12258 197 28 62 Vodacom Internet Company
29975 191 667 21 Vodacom
16637 170 680 87 MTN Network Solutions
15706 160 32 6 Sudatel Internet Exchange Aut
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
7029 3412 986 155 Windstream Communications Inc
6389 3383 3773 186 bellsouth.net, inc.
4766 2759 11123 1252 Korea Telecom (KIX)
17974 2274 569 90 PT TELEKOMUNIKASI INDONESIA
18566 2088 382 181 Covad Communications
28573 2044 1226 58 NET Servicos de Comunicao S.A
10620 2030 349 213 TVCABLE BOGOTA
1785 1939 681 130 PaeTec Communications, Inc.
7545 1703 301 86 TPG Internet Pty Ltd
22773 1698 2914 125 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3383 3197 bellsouth.net, inc.
17974 2274 2184 PT TELEKOMUNIKASI INDONESIA
28573 2044 1986 NET Servicos de Comunicao S.A
18566 2088 1907 Covad Communications
10620 2030 1817 TVCABLE BOGOTA
1785 1939 1809 PaeTec Communications, Inc.
7545 1703 1617 TPG Internet Pty Ltd
8402 1595 1579 Corbina telecom
22773 1698 1573 Cox Communications, Inc.
4766 2759 1507 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH
59457 UNALLOCATED 5.149.64.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.64.0/19 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.65.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.66.0/24 35567 DASTO semtel d.o.o.
59473 UNALLOCATED 5.149.152.0/22 44843 AmsterdamTelecom Ltd
59473 UNALLOCATED 5.149.156.0/23 44843 AmsterdamTelecom Ltd
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.0.0/15 14744 Internap Network Services
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.10.8.0/21 57154 Stadtwerke Konstanz GmbH
5.10.40.0/21 12466 BICOS.NET Autonomous System
5.10.48.0/20 29562 Kabel Baden-Wuerttemberg GmbH
5.158.96.0/19 38934 Pride Limited
5.158.200.0/21 23456 32-bit ASN transition
5.158.208.0/21 2914 Verio, Inc.
5.159.40.0/21 23456 32-bit ASN transition
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
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 /9:13 /10:28 /11:83 /12:236
/13:475 /14:848 /15:1529 /16:12304 /17:6362 /18:10763
/19:20931 /20:29897 /21:31764 /22:41424 /23:39675 /24:219022
/25:1215 /26:1472 /27:850 /28:162 /29:60 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2773 3412 Windstream Communications Inc
18566 2038 2088 Covad Communications
6389 1864 3383 bellsouth.net, inc.
30036 1339 1404 Mediacom Communications Corp
8402 1292 1595 Corbina telecom
11492 1155 1192 Cable One
22773 1122 1698 Cox Communications, Inc.
6503 1051 1527 AVANTEL, S.A.
1785 1048 1939 PaeTec Communications, Inc.
7011 930 1191 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:564 2:688 3:1 4:13 5:239 6:3
8:440 12:2008 13:1 14:635 15:11 16:3
17:6 20:24 23:202 24:1796 27:1320 31:1018
32:56 33:2 34:2 36:8 37:672 38:824
39:1 40:134 41:2848 42:158 44:3 46:1551
47:2 49:429 50:569 52:13 54:14 55:8
56:1 57:31 58:983 59:532 60:237 61:1359
62:928 63:2029 64:4241 65:2241 66:4513 67:2021
68:1155 69:3201 70:986 71:520 72:1870 74:2604
75:489 76:335 77:938 78:938 79:492 80:1233
81:948 82:642 83:539 84:511 85:1161 86:451
87:931 88:346 89:1764 90:303 91:5063 92:585
93:1307 94:1564 95:1236 96:401 97:318 98:887
99:39 100:21 101:258 103:1324 105:464 106:115
107:189 108:404 109:1464 110:793 111:943 112:431
113:681 114:667 115:925 116:924 117:737 118:922
119:1236 120:357 121:806 122:1667 123:1156 124:1380
125:1259 128:556 129:185 130:266 131:638 132:298
133:22 134:245 135:61 136:215 137:240 138:342
139:184 140:495 141:254 142:437 143:370 144:496
145:77 146:509 147:288 148:767 149:319 150:153
151:186 152:473 153:176 154:19 155:402 156:222
157:382 158:190 159:626 160:344 161:280 162:383
163:189 164:674 165:412 166:585 167:535 168:956
169:127 170:899 171:147 172:5 173:1736 174:605
175:435 176:574 177:998 178:1652 180:1327 181:113
182:1044 183:207 184:559 186:2044 187:1094 188:1379
189:1584 190:6148 192:6021 193:5431 194:4192 195:3207
196:1207 197:184 198:3682 199:4936 200:5994 201:1980
202:8727 203:8671 204:4392 205:2531 206:2794 207:2831
208:4052 209:3632 210:2771 211:1565 212:2042 213:1801
214:875 215:86 216:5073 217:1565 218:562 219:338
220:1233 221:572 222:335 223:350
End of report
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