Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 24 18:33:55 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 25 Aug, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 264582
Prefixes after maximum aggregation: 97761
Deaggregation factor: 2.71
Unique aggregates announced to Internet: 119633
Total ASes present in the Internet Routing Table: 29036
Prefixes per ASN: 9.11
Origin-only ASes present in the Internet Routing Table: 22245
Origin ASes announcing only one prefix: 11565
Transit ASes present in the Internet Routing Table: 4486
Transit-only ASes present in the Internet Routing Table: 492
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: 435
Unregistered ASNs in the Routing Table: 144
Number of 32-bit ASNs allocated by the RIRs: 3169
Number of 32-bit ASNs visible in the Routing Table: 2305
Prefixes from 32-bit ASNs in the Routing Table: 6164
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 74
Number of addresses announced to Internet: 2132781732
Equivalent to 127 /8s, 31 /16s and 170 /24s
Percentage of available address space announced: 57.5
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.3
Total number of prefixes smaller than registry allocations: 117536
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 59813
Total APNIC prefixes after maximum aggregation: 15336
APNIC Deaggregation factor: 3.90
Prefixes being announced from the APNIC address blocks: 60438
Unique aggregates announced from the APNIC address blocks: 22879
APNIC Region origin ASes present in the Internet Routing Table: 2883
APNIC Prefixes per ASN: 20.96
APNIC Region origin ASes announcing only one prefix: 806
APNIC Region transit ASes present in the Internet Routing Table: 609
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 242
Number of APNIC addresses announced to Internet: 551407040
Equivalent to 32 /8s, 221 /16s and 205 /24s
Percentage of available APNIC address space announced: 64.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 96228
Total ARIN prefixes after maximum aggregation: 43322
ARIN Deaggregation factor: 2.22
Prefixes being announced from the ARIN address blocks: 97518
Unique aggregates announced from the ARIN address blocks: 38278
ARIN Region origin ASes present in the Internet Routing Table: 10585
ARIN Prefixes per ASN: 9.21
ARIN Region origin ASes announcing only one prefix: 4892
ARIN Region transit ASes present in the Internet Routing Table: 1244
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 7
Number of ARIN addresses announced to Internet: 937035712
Equivalent to 55 /8s, 218 /16s and 7 /24s
Percentage of available ARIN address space announced: 49.6
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: 74529
Total RIPE prefixes after maximum aggregation: 34410
RIPE Deaggregation factor: 2.17
Prefixes being announced from the RIPE address blocks: 76326
Unique aggregates announced from the RIPE address blocks: 45907
RIPE Region origin ASes present in the Internet Routing Table: 11345
RIPE Prefixes per ASN: 6.73
RIPE Region origin ASes announcing only one prefix: 5497
RIPE Region transit ASes present in the Internet Routing Table: 2197
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: 1423
Number of RIPE addresses announced to Internet: 548373764
Equivalent to 32 /8s, 175 /16s and 133 /24s
Percentage of available RIPE address space announced: 79.7
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: 20998
Total LACNIC prefixes after maximum aggregation: 3524
LACNIC Deaggregation factor: 5.96
Prefixes being announced from the LACNIC address blocks: 23232
Unique aggregates announced from the LACNIC address blocks: 10439
LACNIC Region origin ASes present in the Internet Routing Table: 1009
LACNIC Prefixes per ASN: 23.02
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 243
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 630
Number of LACNIC addresses announced to Internet: 72150560
Equivalent to 4 /8s, 76 /16s and 238 /24s
Percentage of available LACNIC address space announced: 43.0
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: 6759
Total AfriNIC prefixes after maximum aggregation: 1134
AfriNIC Deaggregation factor: 5.96
Prefixes being announced from the AfriNIC address blocks: 6994
Unique aggregates announced from the AfriNIC address blocks: 2064
AfriNIC Region origin ASes present in the Internet Routing Table: 392
AfriNIC Prefixes per ASN: 17.84
AfriNIC Region origin ASes announcing only one prefix: 112
AfriNIC Region transit ASes present in the Internet Routing Table: 94
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: 3
Number of AfriNIC addresses announced to Internet: 23734528
Equivalent to 1 /8s, 106 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 23.6
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
17974 2051 678 47 PT TELEKOMUNIKASI INDONESIA
9829 1271 1068 25 BSNL National Internet Backbo
7545 1252 217 20 TPG Internet Pty Ltd
4766 1140 8409 574 Korea Telecom (KIX)
4755 1113 310 98 TATA Communications formerly
7552 1066 1054 9 Vietel Corporation
24560 1017 384 140 Bharti Airtel Ltd., Telemedia
9498 884 276 49 BHARTI Airtel Ltd.
4808 726 1581 181 CNCGROUP IP network: China169
17488 577 135 181 Hathway IP Over Cable Interne
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 2956 878 80 Windstream Communications Inc
6389 2739 3537 137 bellsouth.net, inc.
18566 1924 369 140 Covad Communications
22773 1729 2908 64 Cox Communications, Inc.
20115 1590 1568 569 Charter Communications
30036 1445 284 732 Mediacom Communications Corp
11492 1197 217 345 Cable One
7011 1157 311 676 Citizens Utilities
1785 1007 378 32 PaeTec Communications, Inc.
19262 952 4686 386 Verizon Global Networks
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 1561 538 12 Corbina telecom
15557 1182 2232 27 LDCOM NETWORKS
12479 818 759 79 Uni2 Autonomous System
20940 692 226 534 Akamai Technologies European
31148 678 35 6 FreeNet ISP
13188 656 100 8 Educational Network
58113 613 69 359 LIR DATACENTER TELECOM SRL
8551 528 336 40 Bezeq International
34984 386 131 63 BILISIM TELEKOM
6830 379 2066 213 UPC Distribution Services
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 1780 1042 32 NET Servicos de Comunicao S.A
6503 1113 360 18 AVANTEL, S.A.
10620 1107 221 152 TVCABLE BOGOTA
8151 1064 2424 191 UniNet S.A. de C.V.
7303 997 761 111 Telecom Argentina Stet-France
18881 528 576 11 Global Village Telecom
27747 448 104 4 Telecentro S.A.
27947 423 54 65 Telconet S.A
7738 368 704 12 Telecomunicacoes da Bahia S.A
14420 348 61 64 CORPORACION NACIONAL DE TELEC
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 855 402 8 TEDATA
24863 663 125 28 LINKdotNET AS number
36998 534 48 3 MOBITEL
6713 412 539 11 Itissalat Al-MAGHRIB
24835 213 44 5 RAYA Telecom - Egypt
33776 190 12 10 Starcomms Nigeria Limited
29975 172 665 17 Vodacom
12258 142 14 51 Vodacom Internet Company
36923 138 20 4 Swift Networks Limited
29571 130 11 17 Ci Telecom Autonomous system
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 2956 878 80 Windstream Communications Inc
6389 2739 3537 137 bellsouth.net, inc.
17974 2051 678 47 PT TELEKOMUNIKASI INDONESIA
18566 1924 369 140 Covad Communications
28573 1780 1042 32 NET Servicos de Comunicao S.A
22773 1729 2908 64 Cox Communications, Inc.
20115 1590 1568 569 Charter Communications
8402 1561 538 12 Corbina telecom
30036 1445 284 732 Mediacom Communications Corp
9829 1271 1068 25 BSNL National Internet Backbo
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 2739 2602 bellsouth.net, inc.
17974 2051 2004 PT TELEKOMUNIKASI INDONESIA
18566 1924 1784 Covad Communications
28573 1780 1748 NET Servicos de Comunicao S.A
22773 1729 1665 Cox Communications, Inc.
8402 1561 1549 Corbina telecom
9829 1271 1246 BSNL National Internet Backbo
7545 1252 1232 TPG Internet Pty Ltd
15557 1182 1155 LDCOM NETWORKS
6503 1113 1095 AVANTEL, S.A.
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
59395 UNALLOCATED 5.133.16.0/21 12658 Dexterity Networks L
59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH
59521 UNALLOCATED 5.134.192.0/21 29518 Labs2
59581 UNALLOCATED 5.149.8.0/21 25577 C4L main AS
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 5.149.66.0/24 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.
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
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
27.112.114.0/24 23884 Proimage Engineering and Comm
41.207.224.0/23 36898 UniNet 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 /8:18 /9:13 /10:26 /11:74 /12:215
/13:411 /14:694 /15:1253 /16:10162 /17:5045 /18:8043
/19:13810 /20:22484 /21:23365 /22:28877 /23:25440 /24:122522
/25:622 /26:961 /27:404 /28:89 /29:30 /30:7
/31:0 /32:17
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2468 2956 Windstream Communications Inc
18566 1890 1924 Covad Communications
6389 1534 2739 bellsouth.net, inc.
30036 1381 1445 Mediacom Communications Corp
8402 1292 1561 Corbina telecom
22773 1167 1729 Cox Communications, Inc.
11492 1160 1197 Cable One
15557 1156 1182 LDCOM NETWORKS
7011 907 1157 Citizens Utilities
6503 857 1113 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:557 2:768 3:1 4:13 5:364 6:3
8:439 12:2006 13:1 14:647 15:11 16:3
17:6 20:27 23:204 24:1804 27:1324 31:1038
32:56 33:2 34:2 36:8 37:716 38:826
39:1 40:133 41:2852 42:155 44:3 46:1584
47:2 49:468 50:592 52:13 54:17 55:7
56:1 57:31 58:990 59:523 60:238 61:1284
62:991 63:2009 64:4264 65:2245 66:4520 67:2044
68:1157 69:3208 70:989 71:525 72:1861 74:2572
75:491 76:330 77:952 78:906 79:490 80:1276
81:956 82:633 83:534 84:622 85:1136 86:787
87:928 88:350 89:1809 90:301 91:5128 92:591
93:1481 94:1568 95:1268 96:414 97:317 98:892
99:39 100:23 101:261 103:1433 105:512 106:115
107:195 108:431 109:1908 110:795 111:956 112:430
113:686 114:652 115:847 116:888 117:729 118:934
119:1245 120:301 121:690 122:1657 123:1171 124:1356
125:1265 128:525 129:183 130:283 131:626 132:299
133:22 134:246 135:61 136:218 137:239 138:338
139:184 140:501 141:275 142:483 143:361 144:486
145:81 146:512 147:258 148:758 149:300 150:156
151:168 152:458 153:177 154:20 155:414 156:224
157:382 158:179 159:631 160:348 161:409 162:404
163:189 164:689 165:411 166:560 167:538 168:957
169:125 170:907 171:145 172:5 173:1717 174:632
175:440 176:603 177:1050 178:1692 180:1347 181:127
182:1037 183:223 184:590 186:2150 187:1078 188:1440
189:1545 190:1332
End of report
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