Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 3 19:15:38 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 04 Aug, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 421297
Prefixes after maximum aggregation: 176997
Deaggregation factor: 2.38
Unique aggregates announced to Internet: 205030
Total ASes present in the Internet Routing Table: 41696
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 33409
Origin ASes announcing only one prefix: 15690
Transit ASes present in the Internet Routing Table: 5591
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 32
Max AS path prepend of ASN ( 48687) 24
Prefixes from unregistered ASNs in the Routing Table: 392
Unregistered ASNs in the Routing Table: 151
Number of 32-bit ASNs allocated by the RIRs: 3071
Number of 32-bit ASNs visible in the Routing Table: 2696
Prefixes from 32-bit ASNs in the Routing Table: 6948
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 161
Number of addresses announced to Internet: 2572875148
Equivalent to 153 /8s, 90 /16s and 245 /24s
Percentage of available address space announced: 69.4
Percentage of allocated address space announced: 69.5
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: 147802
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102288
Total APNIC prefixes after maximum aggregation: 32823
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 102793
Unique aggregates announced from the APNIC address blocks: 42228
APNIC Region origin ASes present in the Internet Routing Table: 4730
APNIC Prefixes per ASN: 21.73
APNIC Region origin ASes announcing only one prefix: 1240
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: 271
Number of APNIC addresses announced to Internet: 706547840
Equivalent to 42 /8s, 29 /16s and 16 /24s
Percentage of available APNIC address space announced: 82.6
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: 153466
Total ARIN prefixes after maximum aggregation: 77832
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 154514
Unique aggregates announced from the ARIN address blocks: 68935
ARIN Region origin ASes present in the Internet Routing Table: 15204
ARIN Prefixes per ASN: 10.16
ARIN Region origin ASes announcing only one prefix: 5759
ARIN Region transit ASes present in the Internet Routing Table: 1602
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: 1073191808
Equivalent to 63 /8s, 247 /16s and 155 /24s
Percentage of available ARIN address space announced: 56.8
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: 105816
Total RIPE prefixes after maximum aggregation: 55707
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 107992
Unique aggregates announced from the RIPE address blocks: 68316
RIPE Region origin ASes present in the Internet Routing Table: 16728
RIPE Prefixes per ASN: 6.46
RIPE Region origin ASes announcing only one prefix: 8102
RIPE Region transit ASes present in the Internet Routing Table: 2709
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1761
Number of RIPE addresses announced to Internet: 638230756
Equivalent to 38 /8s, 10 /16s and 160 /24s
Percentage of available RIPE address space announced: 92.8
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: 43064
Total LACNIC prefixes after maximum aggregation: 8394
LACNIC Deaggregation factor: 5.13
Prefixes being announced from the LACNIC address blocks: 45825
Unique aggregates announced from the LACNIC address blocks: 21998
LACNIC Region origin ASes present in the Internet Routing Table: 1619
LACNIC Prefixes per ASN: 28.30
LACNIC Region origin ASes announcing only one prefix: 421
LACNIC Region transit ASes present in the Internet Routing Table: 314
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 642
Number of LACNIC addresses announced to Internet: 113014696
Equivalent to 6 /8s, 188 /16s and 119 /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: 9558
Total AfriNIC prefixes after maximum aggregation: 2187
AfriNIC Deaggregation factor: 4.37
Prefixes being announced from the AfriNIC address blocks: 10012
Unique aggregates announced from the AfriNIC address blocks: 3413
AfriNIC Region origin ASes present in the Internet Routing Table: 553
AfriNIC Prefixes per ASN: 18.10
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 124
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: 6
Number of AfriNIC addresses announced to Internet: 41555712
Equivalent to 2 /8s, 122 /16s and 23 /24s
Percentage of available AfriNIC address space announced: 41.3
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 2760 11123 1253 Korea Telecom (KIX)
17974 2291 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1710 301 86 TPG Internet Pty Ltd
4755 1603 386 156 TATA Communications formerly
9829 1310 1084 31 BSNL National Internet Backbo
9583 1159 87 507 Sify Limited
7552 1128 1062 11 Vietel Corporation
4808 1122 2052 322 CNCGROUP IP network: China169
24560 1037 384 165 Bharti Airtel Ltd., Telemedia
9498 993 294 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 3443 986 155 Windstream Communications Inc
6389 3343 3773 191 bellsouth.net, inc.
18566 2088 382 181 Covad Communications
1785 1946 681 131 PaeTec Communications, Inc.
22773 1699 2914 125 Cox Communications, Inc.
20115 1646 1572 611 Charter Communications
4323 1577 1027 385 Time Warner Telecom
30036 1431 280 786 Mediacom Communications Corp
7018 1247 10039 816 AT&T WorldNet Services
11492 1191 216 351 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 1569 544 16 Corbina telecom
15557 1215 2247 55 LDCOM NETWORKS
12479 823 761 88 Uni2 Autonomous System
34984 735 189 177 BILISIM TELEKOM
20940 722 236 566 Akamai Technologies European
6830 714 2310 445 UPC Distribution Services
31148 704 37 9 FreeNet ISP
2118 664 97 14 EUnet/RELCOM Autonomous Syste
13188 660 100 9 Educational Network
8551 577 364 61 Bezeq International
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 2036 350 211 TVCABLE BOGOTA
28573 2026 1228 58 NET Servicos de Comunicao S.A
6503 1527 419 66 AVANTEL, S.A.
8151 1473 3071 346 UniNet S.A. de C.V.
7303 1460 936 198 Telecom Argentina Stet-France
6458 882 81 15 GUATEL
27947 719 74 95 Telconet S.A
11172 644 91 74 Servicios Alestra S.A de C.V
3816 602 255 90 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 966 958 13 TEDATA
24863 864 274 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
33776 228 12 19 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
29975 191 667 21 Vodacom
15706 177 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 3443 986 155 Windstream Communications Inc
6389 3343 3773 191 bellsouth.net, inc.
4766 2760 11123 1253 Korea Telecom (KIX)
17974 2291 702 54 PT TELEKOMUNIKASI INDONESIA
18566 2088 382 181 Covad Communications
10620 2036 350 211 TVCABLE BOGOTA
28573 2026 1228 58 NET Servicos de Comunicao S.A
1785 1946 681 131 PaeTec Communications, Inc.
7545 1710 301 86 TPG Internet Pty Ltd
22773 1699 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 3343 3152 bellsouth.net, inc.
17974 2291 2237 PT TELEKOMUNIKASI INDONESIA
28573 2026 1968 NET Servicos de Comunicao S.A
18566 2088 1907 Covad Communications
10620 2036 1825 TVCABLE BOGOTA
1785 1946 1815 PaeTec Communications, Inc.
7545 1710 1624 TPG Internet Pty Ltd
22773 1699 1574 Cox Communications, Inc.
8402 1569 1553 Corbina telecom
4766 2760 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
59414 UNALLOCATED 5.102.144.0/21 15576 Nextra backbone in D
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 5.149.65.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.67.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.68.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.71.0/24 35567 DASTO semtel d.o.o.
59458 UNALLOCATED 5.149.96.0/21 50597 ScopeSky Communicati
59458 UNALLOCATED 5.149.104.0/22 50597 ScopeSky Communicati
59473 UNALLOCATED 5.149.152.0/22 44843 AmsterdamTelecom Ltd
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.175.80.0/21 47886 Equinix Netherlands IP Platfo
5.175.128.0/17 12586 GHOSTnet
5.178.24.0/21 21191 SeverTransTeleCom Autonomous
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
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 /10:28 /11:82 /12:236
/13:474 /14:848 /15:1529 /16:12336 /17:6372 /18:10753
/19:20953 /20:29981 /21:31860 /22:41601 /23:39706 /24:220602
/25:1282 /26:1504 /27:852 /28:164 /29:61 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2802 3443 Windstream Communications Inc
18566 2038 2088 Covad Communications
6389 1835 3343 bellsouth.net, inc.
30036 1366 1431 Mediacom Communications Corp
8402 1266 1569 Corbina telecom
15557 1159 1215 LDCOM NETWORKS
11492 1154 1191 Cable One
22773 1123 1699 Cox Communications, Inc.
1785 1053 1946 PaeTec Communications, Inc.
6503 1050 1527 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:558 2:704 3:1 4:13 5:299 6:3
8:439 12:2003 13:1 14:632 15:11 16:3
17:6 20:24 23:204 24:1800 27:1327 31:1024
32:56 33:2 34:2 36:8 37:664 38:821
39:1 40:134 41:2838 42:158 44:3 46:1554
47:2 49:427 50:576 52:13 54:14 55:8
56:1 57:31 58:986 59:510 60:236 61:1284
62:974 63:2028 64:4246 65:2250 66:4532 67:2037
68:1152 69:3204 70:986 71:520 72:1867 74:2608
75:489 76:332 77:951 78:946 79:497 80:1275
81:945 82:640 83:541 84:619 85:1147 86:797
87:932 88:353 89:1794 90:305 91:5067 92:588
93:1452 94:1557 95:1278 96:400 97:318 98:903
99:39 100:22 101:257 103:1341 105:464 106:112
107:189 108:413 109:1911 110:795 111:947 112:434
113:676 114:687 115:858 116:930 117:735 118:944
119:1236 120:360 121:696 122:1677 123:1162 124:1378
125:1265 128:555 129:183 130:267 131:640 132:297
133:22 134:245 135:61 136:216 137:240 138:342
139:183 140:496 141:258 142:451 143:374 144:496
145:78 146:510 147:290 148:770 149:319 150:150
151:186 152:473 153:175 154:19 155:405 156:222
157:381 158:191 159:630 160:348 161:386 162:385
163:190 164:675 165:411 166:577 167:533 168:963
169:126 170:899 171:147 172:5 173:1739 174:628
175:432 176:570 177:1003 178:1657 180:1327 181:115
182:1030 183:233 184:572 186:2069 187:1115 188:1338
189:1588 190:6176 192:6026 193:5444 194:4198 195:3264
196:1231 197:201 198:3695 199:4945 200:6015 201:1981
202:8728 203:8694 204:4393 205:2534 206:2796 207:2861
208:4042 209:3631 210:2761 211:1548 212:2010 213:1808
214:878 215:86 216:5083 217:1555 218:561 219:315
220:1239 221:570 222:336 223:372
End of report
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