[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 14 18:50:04 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 15 Sep, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 426606
Prefixes after maximum aggregation: 177882
Deaggregation factor: 2.40
Unique aggregates announced to Internet: 207475
Total ASes present in the Internet Routing Table: 42113
Prefixes per ASN: 10.13
Origin-only ASes present in the Internet Routing Table: 33613
Origin ASes announcing only one prefix: 15760
Transit ASes present in the Internet Routing Table: 5611
Transit-only ASes present in the Internet Routing Table: 135
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: 716
Unregistered ASNs in the Routing Table: 253
Number of 32-bit ASNs allocated by the RIRs: 3277
Number of 32-bit ASNs visible in the Routing Table: 2889
Prefixes from 32-bit ASNs in the Routing Table: 7687
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 177
Number of addresses announced to Internet: 2595714508
Equivalent to 154 /8s, 183 /16s and 117 /24s
Percentage of available address space announced: 70.1
Percentage of allocated address space announced: 70.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 93.6
Total number of prefixes smaller than registry allocations: 150375
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102576
Total APNIC prefixes after maximum aggregation: 32472
APNIC Deaggregation factor: 3.16
Prefixes being announced from the APNIC address blocks: 103203
Unique aggregates announced from the APNIC address blocks: 42696
APNIC Region origin ASes present in the Internet Routing Table: 4756
APNIC Prefixes per ASN: 21.70
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 768
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: 309
Number of APNIC addresses announced to Internet: 707879232
Equivalent to 42 /8s, 49 /16s and 97 /24s
Percentage of available APNIC address space announced: 82.7
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: 154269
Total ARIN prefixes after maximum aggregation: 78053
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 155263
Unique aggregates announced from the ARIN address blocks: 69144
ARIN Region origin ASes present in the Internet Routing Table: 15238
ARIN Prefixes per ASN: 10.19
ARIN Region origin ASes announcing only one prefix: 5745
ARIN Region transit ASes present in the Internet Routing Table: 1599
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: 17
Number of ARIN addresses announced to Internet: 1084171392
Equivalent to 64 /8s, 159 /16s and 36 /24s
Percentage of available ARIN address space announced: 57.4
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: 108355
Total RIPE prefixes after maximum aggregation: 56640
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 110819
Unique aggregates announced from the RIPE address blocks: 70085
RIPE Region origin ASes present in the Internet Routing Table: 16853
RIPE Prefixes per ASN: 6.58
RIPE Region origin ASes announcing only one prefix: 8165
RIPE Region transit ASes present in the Internet Routing Table: 2711
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: 1876
Number of RIPE addresses announced to Internet: 645372900
Equivalent to 38 /8s, 119 /16s and 155 /24s
Percentage of available RIPE address space announced: 93.8
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: 43765
Total LACNIC prefixes after maximum aggregation: 8447
LACNIC Deaggregation factor: 5.18
Prefixes being announced from the LACNIC address blocks: 46833
Unique aggregates announced from the LACNIC address blocks: 21932
LACNIC Region origin ASes present in the Internet Routing Table: 1647
LACNIC Prefixes per ASN: 28.44
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 324
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: 681
Number of LACNIC addresses announced to Internet: 116179240
Equivalent to 6 /8s, 236 /16s and 193 /24s
Percentage of available LACNIC address space announced: 69.2
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,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9832
Total AfriNIC prefixes after maximum aggregation: 2213
AfriNIC Deaggregation factor: 4.44
Prefixes being announced from the AfriNIC address blocks: 10311
Unique aggregates announced from the AfriNIC address blocks: 3470
AfriNIC Region origin ASes present in the Internet Routing Table: 562
AfriNIC Prefixes per ASN: 18.35
AfriNIC Region origin ASes announcing only one prefix: 174
AfriNIC Region transit ASes present in the Internet Routing Table: 128
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: 41805056
Equivalent to 2 /8s, 125 /16s and 229 /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, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2979 11429 904 Korea Telecom (KIX)
17974 2339 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1757 301 86 TPG Internet Pty Ltd
4755 1617 387 162 TATA Communications formerly
9829 1333 1106 41 BSNL National Internet Backbo
9583 1177 87 513 Sify Limited
7552 1129 1062 11 Vietel Corporation
4808 1126 2050 320 CNCGROUP IP network: China169
24560 1040 385 159 Bharti Airtel Ltd., Telemedia
9498 1009 310 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
6389 3331 3735 185 bellsouth.net, inc.
7029 3154 990 161 Windstream Communications Inc
18566 2085 382 180 Covad Communications
1785 1911 678 128 PaeTec Communications, Inc.
22773 1886 2931 129 Cox Communications, Inc.
20115 1659 1580 615 Charter Communications
4323 1577 1154 387 Time Warner Telecom
30036 1388 273 744 Mediacom Communications Corp
7018 1241 10316 827 AT&T WorldNet Services
7011 1204 329 698 Citizens Utilities
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 1654 544 16 Corbina telecom
2118 1401 97 14 EUnet/RELCOM Autonomous Syste
15557 1226 2247 55 LDCOM NETWORKS
12479 846 773 79 Uni2 Autonomous System
34984 766 205 179 BILISIM TELEKOM
6830 723 2313 447 UPC Distribution Services
20940 720 230 552 Akamai Technologies European
31148 709 37 9 FreeNet ISP
13188 668 100 9 Educational Network
58113 616 69 362 LIR DATACENTER TELECOM SRL
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 2155 368 223 TVCABLE BOGOTA
28573 2145 1248 54 NET Servicos de Comunicao S.A
8151 1580 3034 348 UniNet S.A. de C.V.
7303 1565 1034 199 Telecom Argentina Stet-France
6503 1535 451 69 AVANTEL, S.A.
6458 751 81 15 GUATEL
27947 722 74 94 Telconet S.A
3816 643 310 30 Empresa Nacional de Telecomun
11172 593 85 69 Servicios Alestra S.A de C.V
14420 581 83 100 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
24863 879 275 36 LINKdotNET AS number
8452 812 958 13 TEDATA
36998 772 48 3 MOBITEL
6713 517 650 19 Itissalat Al-MAGHRIB
24835 269 80 8 RAYA Telecom - Egypt
3741 263 904 223 The Internet Solution
33776 207 12 12 Starcomms Nigeria Limited
12258 194 28 66 Vodacom Internet Company
15706 193 32 6 Sudatel Internet Exchange Aut
29975 191 667 21 Vodacom
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 3331 3735 185 bellsouth.net, inc.
7029 3154 990 161 Windstream Communications Inc
4766 2979 11429 904 Korea Telecom (KIX)
17974 2339 702 54 PT TELEKOMUNIKASI INDONESIA
10620 2155 368 223 TVCABLE BOGOTA
28573 2145 1248 54 NET Servicos de Comunicao S.A
18566 2085 382 180 Covad Communications
1785 1911 678 128 PaeTec Communications, Inc.
22773 1886 2931 129 Cox Communications, Inc.
7545 1757 301 86 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 3154 2993 Windstream Communications Inc
17974 2339 2285 PT TELEKOMUNIKASI INDONESIA
28573 2145 2091 NET Servicos de Comunicao S.A
4766 2979 2075 Korea Telecom (KIX)
10620 2155 1932 TVCABLE BOGOTA
18566 2085 1905 Covad Communications
1785 1911 1783 PaeTec Communications, Inc.
22773 1886 1757 Cox Communications, Inc.
7545 1757 1671 TPG Internet Pty Ltd
8402 1654 1638 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
59505 UNALLOCATED 5.2.65.0/24 50673 Serverius AS
59505 UNALLOCATED 5.2.66.0/24 50673 Serverius AS
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
59441 UNALLOCATED 5.144.128.0/21 50810 Mobin Net Communicat
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 5.149.64.0/19 35567 DASTO semtel d.o.o.
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.249.176.0/20 58056 IKT, d.o.o.
5.249.192.0/19 42277 RIPE Network Coordination Cen
5.254.128.0/24 42708 RIPE Network Coordination Cen
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 /8:18 /9:14 /10:29 /11:84 /12:237
/13:476 /14:843 /15:1543 /16:12393 /17:6441 /18:10838
/19:21093 /20:30253 /21:32163 /22:42398 /23:39918 /24:223596
/25:1402 /26:1664 /27:924 /28:175 /29:62 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2641 3154 Windstream Communications Inc
18566 2035 2085 Covad Communications
6389 1851 3331 bellsouth.net, inc.
8402 1377 1654 Corbina telecom
30036 1323 1388 Mediacom Communications Corp
22773 1227 1886 Cox Communications, Inc.
15557 1170 1226 LDCOM NETWORKS
11492 1161 1198 Cable One
6503 1053 1535 AVANTEL, S.A.
1785 1013 1911 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:604 2:600 3:1 4:13 5:485 6:3
8:457 12:2000 13:1 14:664 15:11 16:3
17:6 20:27 23:206 24:1789 27:1358 31:1022
32:56 33:2 34:2 36:7 37:737 38:829
39:2 40:133 41:3072 42:158 44:3 46:1587
47:2 49:476 50:595 52:13 54:18 55:9
56:1 57:31 58:986 59:531 60:241 61:1292
62:950 63:1995 64:4266 65:2240 66:4500 67:2040
68:1170 69:3202 70:987 71:509 72:1871 74:2599
75:483 76:313 77:949 78:960 79:488 80:1264
81:957 82:628 83:532 84:615 85:1159 86:810
87:923 88:363 89:1805 90:302 91:5206 92:579
93:1546 94:1604 95:1167 96:416 97:319 98:994
99:39 100:23 101:261 103:1533 105:512 106:118
107:198 108:455 109:1935 110:797 111:964 112:450
113:704 114:657 115:813 116:891 117:729 118:935
119:1266 120:309 121:688 122:1645 123:1161 124:1345
125:1284 128:549 129:184 130:282 131:633 132:301
133:22 134:250 135:61 136:217 137:239 138:340
139:171 140:500 141:282 142:487 143:370 144:497
145:80 146:515 147:257 148:757 149:324 150:157
151:170 152:450 153:183 154:20 155:419 156:222
157:381 158:186 159:647 160:343 161:414 162:359
163:190 164:693 165:420 166:530 167:550 168:964
169:125 170:908 171:150 172:7 173:1688 174:612
175:440 176:799 177:1166 178:1645 180:1361 181:136
182:1052 183:295 184:605 186:2242 187:1248 188:1501
189:1578 190:6026 192:6030 193:5725 194:4554 195:3455
196:1200 197:220 198:3784 199:4996 200:5967 201:1957
202:8714 203:8726 204:4431 205:2548 206:2780 207:2874
208:4069 209:3656 210:2837 211:1533 212:2034 213:1814
214:883 215:87 216:5135 217:1550 218:569 219:315
220:1242 221:536 222:334 223:385
End of report
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