[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 26 18:50:52 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 27 Oct, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 429634
Prefixes after maximum aggregation: 179531
Deaggregation factor: 2.39
Unique aggregates announced to Internet: 211158
Total ASes present in the Internet Routing Table: 42474
Prefixes per ASN: 10.12
Origin-only ASes present in the Internet Routing Table: 33773
Origin ASes announcing only one prefix: 15820
Transit ASes present in the Internet Routing Table: 5659
Transit-only ASes present in the Internet Routing Table: 145
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 40
Max AS path prepend of ASN ( 22394) 36
Prefixes from unregistered ASNs in the Routing Table: 871
Unregistered ASNs in the Routing Table: 322
Number of 32-bit ASNs allocated by the RIRs: 3412
Number of 32-bit ASNs visible in the Routing Table: 3042
Prefixes from 32-bit ASNs in the Routing Table: 8244
Special use prefixes present in the Routing Table: 13
Prefixes being announced from unallocated address space: 159
Number of addresses announced to Internet: 2608859500
Equivalent to 155 /8s, 128 /16s and 9 /24s
Percentage of available address space announced: 70.5
Percentage of allocated address space announced: 70.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 93.8
Total number of prefixes smaller than registry allocations: 150954
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 103698
Total APNIC prefixes after maximum aggregation: 32582
APNIC Deaggregation factor: 3.18
Prefixes being announced from the APNIC address blocks: 104472
Unique aggregates announced from the APNIC address blocks: 42967
APNIC Region origin ASes present in the Internet Routing Table: 4783
APNIC Prefixes per ASN: 21.84
APNIC Region origin ASes announcing only one prefix: 1249
APNIC Region transit ASes present in the Internet Routing Table: 779
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: 340
Number of APNIC addresses announced to Internet: 712220960
Equivalent to 42 /8s, 115 /16s and 161 /24s
Percentage of available APNIC address space announced: 83.2
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: 154902
Total ARIN prefixes after maximum aggregation: 78361
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 155759
Unique aggregates announced from the ARIN address blocks: 69605
ARIN Region origin ASes present in the Internet Routing Table: 15296
ARIN Prefixes per ASN: 10.18
ARIN Region origin ASes announcing only one prefix: 5788
ARIN Region transit ASes present in the Internet Routing Table: 1600
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 40
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1087370112
Equivalent to 64 /8s, 207 /16s and 243 /24s
Percentage of available ARIN address space announced: 57.5
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: 108872
Total RIPE prefixes after maximum aggregation: 57549
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 111543
Unique aggregates announced from the RIPE address blocks: 72153
RIPE Region origin ASes present in the Internet Routing Table: 16922
RIPE Prefixes per ASN: 6.59
RIPE Region origin ASes announcing only one prefix: 8139
RIPE Region transit ASes present in the Internet Routing Table: 2750
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1984
Number of RIPE addresses announced to Internet: 648338212
Equivalent to 38 /8s, 164 /16s and 219 /24s
Percentage of available RIPE address space announced: 94.3
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: 44124
Total LACNIC prefixes after maximum aggregation: 8743
LACNIC Deaggregation factor: 5.05
Prefixes being announced from the LACNIC address blocks: 47539
Unique aggregates announced from the LACNIC address blocks: 22817
LACNIC Region origin ASes present in the Internet Routing Table: 1686
LACNIC Prefixes per ASN: 28.20
LACNIC Region origin ASes announcing only one prefix: 471
LACNIC Region transit ASes present in the Internet Routing Table: 315
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 696
Number of LACNIC addresses announced to Internet: 118264488
Equivalent to 7 /8s, 12 /16s and 146 /24s
Percentage of available LACNIC address space announced: 70.5
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: 9678
Total AfriNIC prefixes after maximum aggregation: 2242
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 10162
Unique aggregates announced from the AfriNIC address blocks: 3476
AfriNIC Region origin ASes present in the Internet Routing Table: 567
AfriNIC Prefixes per ASN: 17.92
AfriNIC Region origin ASes announcing only one prefix: 173
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: 5
Number of AfriNIC addresses announced to Internet: 42372864
Equivalent to 2 /8s, 134 /16s and 143 /24s
Percentage of available AfriNIC address space announced: 42.1
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 2972 11558 900 Korea Telecom (KIX)
17974 2418 829 55 PT TELEKOMUNIKASI INDONESIA
7545 1785 301 86 TPG Internet Pty Ltd
4755 1610 375 158 TATA Communications formerly
9829 1398 1152 36 BSNL National Internet Backbo
9583 1187 88 509 Sify Limited
4808 1112 2056 314 CNCGROUP IP network: China169
7552 1105 1062 11 Vietel Corporation
24560 1035 385 162 Bharti Airtel Ltd., Telemedia
9498 1027 310 74 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 3178 3724 164 bellsouth.net, inc.
7029 3132 989 161 Windstream Communications Inc
18566 2084 382 180 Covad Communications
1785 1928 678 126 PaeTec Communications, Inc.
22773 1909 2931 128 Cox Communications, Inc.
20115 1665 1586 617 Charter Communications
4323 1592 1155 393 Time Warner Telecom
30036 1373 274 726 Mediacom Communications Corp
7018 1276 10290 849 AT&T WorldNet Services
7011 1222 334 692 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 1847 544 16 Corbina telecom
12479 853 776 64 Uni2 Autonomous System
34984 822 207 198 BILISIM TELEKOM
31148 726 37 9 FreeNet ISP
6830 724 2314 446 UPC Distribution Services
13188 707 93 134 Educational Network
20940 699 223 548 Akamai Technologies European
2118 664 97 14 EUnet/RELCOM Autonomous Syste
58113 601 66 364 LIR DATACENTER TELECOM SRL
8551 595 364 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 2224 378 227 TVCABLE BOGOTA
28573 2138 1276 77 NET Servicos de Comunicao S.A
7303 1661 1131 201 Telecom Argentina Stet-France
8151 1590 3030 356 UniNet S.A. de C.V.
6503 1524 435 68 AVANTEL, S.A.
27947 739 74 96 Telconet S.A
3816 652 309 69 Empresa Nacional de Telecomun
14420 593 89 103 CORPORACION NACIONAL DE TELEC
11172 589 85 65 Servicios Alestra S.A de C.V
7738 585 1178 33 Telecomunicacoes da Bahia 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
24863 899 275 36 LINKdotNET AS number
36998 772 48 3 MOBITEL
8452 651 958 13 TEDATA
6713 516 650 19 Itissalat Al-MAGHRIB
24835 287 80 8 RAYA Telecom - Egypt
3741 267 906 225 The Internet Solution
12258 194 28 66 Vodacom Internet Company
15706 191 32 6 Sudatel Internet Exchange Aut
29975 191 667 21 Vodacom
16637 172 697 88 MTN Network Solutions
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 3178 3724 164 bellsouth.net, inc.
7029 3132 989 161 Windstream Communications Inc
4766 2972 11558 900 Korea Telecom (KIX)
17974 2418 829 55 PT TELEKOMUNIKASI INDONESIA
10620 2224 378 227 TVCABLE BOGOTA
28573 2138 1276 77 NET Servicos de Comunicao S.A
18566 2084 382 180 Covad Communications
1785 1928 678 126 PaeTec Communications, Inc.
22773 1909 2931 128 Cox Communications, Inc.
8402 1847 544 16 Corbina telecom
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 3132 2971 Windstream Communications Inc
17974 2418 2363 PT TELEKOMUNIKASI INDONESIA
4766 2972 2072 Korea Telecom (KIX)
28573 2138 2061 NET Servicos de Comunicao S.A
10620 2224 1997 TVCABLE BOGOTA
18566 2084 1904 Covad Communications
8402 1847 1831 Corbina telecom
1785 1928 1802 PaeTec Communications, Inc.
22773 1909 1781 Cox Communications, Inc.
7545 1785 1699 TPG Internet Pty Ltd
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
61408 UNALLOCATED 5.56.0.0/22 174 Cogent Communication
59414 UNALLOCATED 5.102.144.0/21 15576 Nextra backbone in D
59395 UNALLOCATED 5.133.16.0/21 3549 Global Crossing
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.
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
128.0.72.0/21 23456 32-bit ASN transition
128.0.80.0/20 52041 Timer LTD
128.0.104.0/23 51848 FOP Gabidullina Ludmila Nikol
128.0.128.0/20 29285 AMT closed joint-stock compan
128.0.144.0/22 59675 >>UNKNOWN<<
128.0.160.0/21 23456 32-bit ASN transition
128.0.168.0/21 15772 W-NET Kiev
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 /11:87 /12:241
/13:478 /14:850 /15:1549 /16:12459 /17:6510 /18:10856
/19:21231 /20:30542 /21:32534 /22:43081 /23:40258 /24:224641
/25:1358 /26:1692 /27:907 /28:180 /29:77 /30:17
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2622 3132 Windstream Communications Inc
18566 2034 2084 Covad Communications
6389 1791 3178 bellsouth.net, inc.
8402 1549 1847 Corbina telecom
30036 1294 1373 Mediacom Communications Corp
22773 1249 1909 Cox Communications, Inc.
11492 1149 1184 Cable One
6503 1054 1524 AVANTEL, S.A.
1785 1018 1928 PaeTec Communications, Inc.
7011 957 1222 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:645 2:785 3:1 4:13 5:581 6:3
8:478 12:1979 13:3 14:681 15:11 16:3
17:6 20:27 23:207 24:1787 27:1370 31:1030
32:54 33:2 34:2 36:7 37:917 38:835
39:2 40:136 41:2788 42:175 44:3 46:1638
47:2 49:461 50:612 52:12 54:25 55:7
56:4 57:27 58:983 59:546 60:237 61:1301
62:972 63:2005 64:4282 65:2228 66:4531 67:2083
68:1159 69:3228 70:986 71:506 72:1882 74:2614
75:478 76:308 77:975 78:1009 79:506 80:1234
81:982 82:623 83:542 84:526 85:1153 86:485
87:942 88:360 89:1810 90:303 91:5281 92:588
93:1445 94:1676 95:1264 96:395 97:325 98:967
99:39 100:30 101:292 103:1702 105:512 106:122
107:201 108:473 109:1612 110:810 111:977 112:436
113:734 114:632 115:869 116:888 117:758 118:948
119:1227 120:360 121:693 122:1694 123:1161 124:1339
125:1284 128:574 129:197 130:284 131:645 132:309
133:142 134:252 135:62 136:220 137:238 138:337
139:170 140:492 141:289 142:491 143:377 144:494
145:82 146:517 147:267 148:727 149:330 150:158
151:204 152:450 153:182 154:21 155:436 156:227
157:371 158:286 159:664 160:337 161:414 162:365
163:191 164:710 165:449 166:512 167:560 168:998
169:126 170:908 171:152 172:7 173:1702 174:611
175:452 176:779 177:1342 178:1619 180:1357 181:162
182:1108 183:314 184:610 185:42 186:2210 187:1374
188:1707 189:1598 190:5892 192:6040 193:5546 194:4275
195:3459 196:1234 197:248 198:3911 199:5083 200:6009
201:1962 202:8709 203:8720 204:4412 205:2521 206:2745
207:2805 208:4056 209:3626 210:2833 211:1536 212:2073
213:1830 214:884 215:87 216:5131 217:1559 218:572
219:307 220:1257 221:533 222:338 223:405
End of report
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