Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 21 18:47:17 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 22 Sep, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 427480
Prefixes after maximum aggregation: 178522
Deaggregation factor: 2.39
Unique aggregates announced to Internet: 208854
Total ASes present in the Internet Routing Table: 42150
Prefixes per ASN: 10.14
Origin-only ASes present in the Internet Routing Table: 33623
Origin ASes announcing only one prefix: 15762
Transit ASes present in the Internet Routing Table: 5619
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: 736
Unregistered ASNs in the Routing Table: 268
Number of 32-bit ASNs allocated by the RIRs: 3307
Number of 32-bit ASNs visible in the Routing Table: 2908
Prefixes from 32-bit ASNs in the Routing Table: 7789
Special use prefixes present in the Routing Table: 9
Prefixes being announced from unallocated address space: 170
Number of addresses announced to Internet: 2597807124
Equivalent to 154 /8s, 215 /16s and 100 /24s
Percentage of available address space announced: 70.2
Percentage of allocated address space announced: 70.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 93.7
Total number of prefixes smaller than registry allocations: 150657
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102817
Total APNIC prefixes after maximum aggregation: 32533
APNIC Deaggregation factor: 3.16
Prefixes being announced from the APNIC address blocks: 103474
Unique aggregates announced from the APNIC address blocks: 42726
APNIC Region origin ASes present in the Internet Routing Table: 4760
APNIC Prefixes per ASN: 21.74
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 768
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: 316
Number of APNIC addresses announced to Internet: 708467008
Equivalent to 42 /8s, 58 /16s and 89 /24s
Percentage of available APNIC address space announced: 82.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 154454
Total ARIN prefixes after maximum aggregation: 78148
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 155396
Unique aggregates announced from the ARIN address blocks: 69131
ARIN Region origin ASes present in the Internet Routing Table: 15249
ARIN Prefixes per ASN: 10.19
ARIN Region origin ASes announcing only one prefix: 5758
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: 1084628608
Equivalent to 64 /8s, 166 /16s and 30 /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: 108700
Total RIPE prefixes after maximum aggregation: 57005
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 111222
Unique aggregates announced from the RIPE address blocks: 71031
RIPE Region origin ASes present in the Internet Routing Table: 16856
RIPE Prefixes per ASN: 6.60
RIPE Region origin ASes announcing only one prefix: 8154
RIPE Region transit ASes present in the Internet Routing Table: 2720
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: 1889
Number of RIPE addresses announced to Internet: 646098660
Equivalent to 38 /8s, 130 /16s and 174 /24s
Percentage of available RIPE address space announced: 93.9
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: 43822
Total LACNIC prefixes after maximum aggregation: 8560
LACNIC Deaggregation factor: 5.12
Prefixes being announced from the LACNIC address blocks: 46964
Unique aggregates announced from the LACNIC address blocks: 22336
LACNIC Region origin ASes present in the Internet Routing Table: 1646
LACNIC Prefixes per ASN: 28.53
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 319
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: 680
Number of LACNIC addresses announced to Internet: 116497520
Equivalent to 6 /8s, 241 /16s and 156 /24s
Percentage of available LACNIC address space announced: 69.4
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: 9773
Total AfriNIC prefixes after maximum aggregation: 2218
AfriNIC Deaggregation factor: 4.41
Prefixes being announced from the AfriNIC address blocks: 10254
Unique aggregates announced from the AfriNIC address blocks: 3489
AfriNIC Region origin ASes present in the Internet Routing Table: 561
AfriNIC Prefixes per ASN: 18.28
AfriNIC Region origin ASes announcing only one prefix: 172
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: 41815296
Equivalent to 2 /8s, 126 /16s and 13 /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 2977 11429 901 Korea Telecom (KIX)
17974 2356 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1760 301 87 TPG Internet Pty Ltd
4755 1620 387 162 TATA Communications formerly
9829 1335 1106 41 BSNL National Internet Backbo
9583 1180 87 513 Sify Limited
7552 1136 1062 11 Vietel Corporation
4808 1119 2044 317 CNCGROUP IP network: China169
24560 1041 386 160 Bharti Airtel Ltd., Telemedia
18101 1015 135 169 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 3311 3733 186 bellsouth.net, inc.
7029 3164 990 161 Windstream Communications Inc
18566 2084 382 180 Covad Communications
1785 1916 678 128 PaeTec Communications, Inc.
22773 1884 2931 129 Cox Communications, Inc.
20115 1661 1580 614 Charter Communications
4323 1575 1153 386 Time Warner Telecom
30036 1379 273 739 Mediacom Communications Corp
7018 1249 10318 832 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 1594 544 16 Corbina telecom
2118 1399 97 14 EUnet/RELCOM Autonomous Syste
15557 1229 2247 55 LDCOM NETWORKS
12479 839 774 77 Uni2 Autonomous System
34984 774 206 181 BILISIM TELEKOM
6830 724 2313 448 UPC Distribution Services
20940 709 225 544 Akamai Technologies European
31148 709 37 9 FreeNet ISP
13188 691 92 162 Educational Network
58113 631 70 366 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 2164 370 219 TVCABLE BOGOTA
28573 2137 1249 55 NET Servicos de Comunicao S.A
8151 1588 3045 345 UniNet S.A. de C.V.
7303 1564 1034 200 Telecom Argentina Stet-France
6503 1536 435 68 AVANTEL, S.A.
27947 725 74 94 Telconet S.A
6458 681 81 15 GUATEL
3816 623 258 114 Empresa Nacional de Telecomun
11172 595 85 69 Servicios Alestra S.A de C.V
14420 587 86 101 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 882 275 36 LINKdotNET AS number
8452 796 958 13 TEDATA
36998 772 48 3 MOBITEL
6713 517 650 19 Itissalat Al-MAGHRIB
24835 269 80 8 RAYA Telecom - Egypt
3741 264 904 224 The Internet Solution
12258 194 28 66 Vodacom Internet Company
15706 192 32 6 Sudatel Internet Exchange Aut
29975 191 667 21 Vodacom
33776 179 13 11 Starcomms Nigeria Limited
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 3311 3733 186 bellsouth.net, inc.
7029 3164 990 161 Windstream Communications Inc
4766 2977 11429 901 Korea Telecom (KIX)
17974 2356 702 54 PT TELEKOMUNIKASI INDONESIA
10620 2164 370 219 TVCABLE BOGOTA
28573 2137 1249 55 NET Servicos de Comunicao S.A
18566 2084 382 180 Covad Communications
1785 1916 678 128 PaeTec Communications, Inc.
22773 1884 2931 129 Cox Communications, Inc.
7545 1760 301 87 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 3164 3003 Windstream Communications Inc
17974 2356 2302 PT TELEKOMUNIKASI INDONESIA
28573 2137 2082 NET Servicos de Comunicao S.A
4766 2977 2076 Korea Telecom (KIX)
10620 2164 1945 TVCABLE BOGOTA
18566 2084 1904 Covad Communications
1785 1916 1788 PaeTec Communications, Inc.
22773 1884 1755 Cox Communications, Inc.
7545 1760 1673 TPG Internet Pty Ltd
8402 1594 1578 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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.24.0/21 41794 Altline LLC
128.0.64.0/22 49466 Declic Telecom SAS
128.0.68.0/22 49466 Declic Telecom SAS
128.0.80.0/20 52041 Timer LTD
128.0.160.0/21 23456 32-bit ASN transition
128.0.168.0/21 15772 W-NET Kiev
128.0.170.0/24 24685 ISP Elencom autonomous system
128.0.176.0/20 30764 PODA s.r.o.
128.0.192.0/21 51483 SaSG GmbH & Co. KG
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
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
41.220.80.0/24 38925 DAC AS Germany
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 /14:841 /15:1548 /16:12409 /17:6470 /18:10855
/19:21100 /20:30284 /21:32205 /22:42557 /23:39934 /24:224158
/25:1390 /26:1668 /27:921 /28:176 /29:64 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2646 3164 Windstream Communications Inc
18566 2034 2084 Covad Communications
6389 1841 3311 bellsouth.net, inc.
30036 1313 1379 Mediacom Communications Corp
8402 1308 1594 Corbina telecom
22773 1227 1884 Cox Communications, Inc.
15557 1173 1229 LDCOM NETWORKS
11492 1161 1198 Cable One
6503 1054 1536 AVANTEL, S.A.
1785 1015 1916 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:622 2:613 3:1 4:13 5:507 6:3
8:457 12:1987 13:1 14:665 15:11 16:3
17:6 20:27 23:206 24:1790 27:1334 31:1013
32:54 33:2 34:2 36:7 37:791 38:832
39:2 40:133 41:3023 42:158 44:3 46:1587
47:2 49:481 50:596 52:13 54:20 55:9
56:1 57:30 58:990 59:539 60:237 61:1288
62:979 63:1996 64:4268 65:2240 66:4511 67:2052
68:1167 69:3233 70:982 71:509 72:1872 74:2602
75:485 76:314 77:967 78:956 79:493 80:1268
81:964 82:633 83:528 84:625 85:1152 86:809
87:918 88:363 89:1792 90:304 91:5212 92:576
93:1540 94:1617 95:1118 96:418 97:320 98:979
99:39 100:23 101:262 103:1548 105:512 106:118
107:198 108:456 109:1950 110:802 111:1001 112:449
113:699 114:633 115:879 116:893 117:728 118:965
119:1261 120:307 121:689 122:1642 123:1169 124:1332
125:1275 128:561 129:184 130:282 131:632 132:310
133:22 134:250 135:61 136:217 137:239 138:338
139:171 140:497 141:281 142:485 143:377 144:489
145:81 146:518 147:261 148:761 149:323 150:155
151:172 152:449 153:178 154:20 155:420 156:226
157:372 158:261 159:654 160:342 161:413 162:364
163:191 164:693 165:421 166:528 167:552 168:965
169:125 170:906 171:161 172:7 173:1693 174:608
175:447 176:794 177:1227 178:1605 180:1362 181:136
182:1053 183:296 184:604 185:2 186:2184 187:1242
188:1674 189:1583 190:6040 192:6034 193:5717 194:4564
195:3475 196:1220 197:220 198:3806 199:5020 200:6002
201:1973 202:8721 203:8730 204:4426 205:2545 206:2761
207:2875 208:4071 209:3668 210:2844 211:1527 212:1997
213:1829 214:879 215:87 216:5123 217:1538 218:567
219:315 220:1246 221:536 222:336 223:390
End of report
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