Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Sep 7 18:51:56 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 08 Sep, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 425836
Prefixes after maximum aggregation: 178207
Deaggregation factor: 2.39
Unique aggregates announced to Internet: 207327
Total ASes present in the Internet Routing Table: 42041
Prefixes per ASN: 10.13
Origin-only ASes present in the Internet Routing Table: 33589
Origin ASes announcing only one prefix: 15753
Transit ASes present in the Internet Routing Table: 5599
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: 715
Unregistered ASNs in the Routing Table: 248
Number of 32-bit ASNs allocated by the RIRs: 3235
Number of 32-bit ASNs visible in the Routing Table: 2853
Prefixes from 32-bit ASNs in the Routing Table: 7496
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 184
Number of addresses announced to Internet: 2593144332
Equivalent to 154 /8s, 144 /16s and 62 /24s
Percentage of available address space announced: 70.0
Percentage of allocated address space announced: 70.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 93.5
Total number of prefixes smaller than registry allocations: 150194
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102226
Total APNIC prefixes after maximum aggregation: 32992
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 102840
Unique aggregates announced from the APNIC address blocks: 42607
APNIC Region origin ASes present in the Internet Routing Table: 4755
APNIC Prefixes per ASN: 21.63
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 763
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 297
Number of APNIC addresses announced to Internet: 707762048
Equivalent to 42 /8s, 47 /16s and 151 /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: 154235
Total ARIN prefixes after maximum aggregation: 77982
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 155222
Unique aggregates announced from the ARIN address blocks: 69088
ARIN Region origin ASes present in the Internet Routing Table: 15222
ARIN Prefixes per ASN: 10.20
ARIN Region origin ASes announcing only one prefix: 5736
ARIN Region transit ASes present in the Internet Routing Table: 1595
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: 1083362176
Equivalent to 64 /8s, 146 /16s and 203 /24s
Percentage of available ARIN address space announced: 57.3
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: 108148
Total RIPE prefixes after maximum aggregation: 56530
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 110545
Unique aggregates announced from the RIPE address blocks: 69820
RIPE Region origin ASes present in the Internet Routing Table: 16841
RIPE Prefixes per ASN: 6.56
RIPE Region origin ASes announcing only one prefix: 8164
RIPE Region transit ASes present in the Internet Routing Table: 2710
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: 1860
Number of RIPE addresses announced to Internet: 644425956
Equivalent to 38 /8s, 105 /16s and 40 /24s
Percentage of available RIPE address space announced: 93.7
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: 43718
Total LACNIC prefixes after maximum aggregation: 8443
LACNIC Deaggregation factor: 5.18
Prefixes being announced from the LACNIC address blocks: 46692
Unique aggregates announced from the LACNIC address blocks: 22215
LACNIC Region origin ASes present in the Internet Routing Table: 1642
LACNIC Prefixes per ASN: 28.44
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 320
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: 673
Number of LACNIC addresses announced to Internet: 115436584
Equivalent to 6 /8s, 225 /16s and 108 /24s
Percentage of available LACNIC address space announced: 68.8
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: 9877
Total AfriNIC prefixes after maximum aggregation: 2203
AfriNIC Deaggregation factor: 4.48
Prefixes being announced from the AfriNIC address blocks: 10353
Unique aggregates announced from the AfriNIC address blocks: 3445
AfriNIC Region origin ASes present in the Internet Routing Table: 560
AfriNIC Prefixes per ASN: 18.49
AfriNIC Region origin ASes announcing only one prefix: 173
AfriNIC Region transit ASes present in the Internet Routing Table: 125
Average AfriNIC Region AS path length visible: 4.7
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: 41688576
Equivalent to 2 /8s, 124 /16s and 30 /24s
Percentage of available AfriNIC address space announced: 41.4
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 2950 11125 1418 Korea Telecom (KIX)
17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1752 301 86 TPG Internet Pty Ltd
4755 1618 387 162 TATA Communications formerly
9829 1322 1101 31 BSNL National Internet Backbo
9583 1179 87 508 Sify Limited
4808 1121 2049 319 CNCGROUP IP network: China169
7552 1107 1062 11 Vietel Corporation
24560 1040 386 160 Bharti Airtel Ltd., Telemedia
9498 1002 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
7029 3456 990 154 Windstream Communications Inc
6389 3334 3736 184 bellsouth.net, inc.
18566 2085 382 180 Covad Communications
1785 1912 678 127 PaeTec Communications, Inc.
22773 1888 2931 129 Cox Communications, Inc.
20115 1658 1578 614 Charter Communications
4323 1580 1026 385 Time Warner Telecom
30036 1417 279 746 Mediacom Communications Corp
7018 1260 10316 831 AT&T WorldNet Services
11492 1197 217 343 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 1661 544 16 Corbina telecom
2118 1401 97 14 EUnet/RELCOM Autonomous Syste
15557 1221 2247 55 LDCOM NETWORKS
12479 830 765 82 Uni2 Autonomous System
34984 756 205 179 BILISIM TELEKOM
6830 723 2313 447 UPC Distribution Services
31148 713 37 9 FreeNet ISP
20940 711 227 549 Akamai Technologies European
13188 702 100 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
28573 2141 1248 54 NET Servicos de Comunicao S.A
10620 2132 362 221 TVCABLE BOGOTA
8151 1570 3032 343 UniNet S.A. de C.V.
7303 1564 1034 199 Telecom Argentina Stet-France
6503 1535 451 69 AVANTEL, S.A.
6458 792 81 15 GUATEL
27947 721 74 94 Telconet S.A
3816 638 262 95 Empresa Nacional de Telecomun
11172 593 85 69 Servicios Alestra S.A de C.V
14420 580 83 105 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 878 275 36 LINKdotNET AS number
8452 834 958 13 TEDATA
36998 776 48 3 MOBITEL
6713 517 650 19 Itissalat Al-MAGHRIB
24835 269 80 8 RAYA Telecom - Egypt
3741 262 904 223 The Internet Solution
33776 231 13 11 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
7029 3456 990 154 Windstream Communications Inc
6389 3334 3736 184 bellsouth.net, inc.
4766 2950 11125 1418 Korea Telecom (KIX)
17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA
28573 2141 1248 54 NET Servicos de Comunicao S.A
10620 2132 362 221 TVCABLE BOGOTA
18566 2085 382 180 Covad Communications
1785 1912 678 127 PaeTec Communications, Inc.
22773 1888 2931 129 Cox Communications, Inc.
7545 1752 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
6389 3334 3150 bellsouth.net, inc.
17974 2342 2288 PT TELEKOMUNIKASI INDONESIA
28573 2141 2087 NET Servicos de Comunicao S.A
10620 2132 1911 TVCABLE BOGOTA
18566 2085 1905 Covad Communications
1785 1912 1785 PaeTec Communications, Inc.
22773 1888 1759 Cox Communications, Inc.
7545 1752 1666 TPG Internet Pty Ltd
8402 1661 1645 Corbina telecom
4766 2950 1532 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
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 5.149.65.0/24 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.
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.206.240.0/20 57332 TOM-NET s.c. Dariusz Koper, R
5.226.64.0/18 12741 INTERNETIA Commercial Autonom
5.226.136.0/21 25369 4u servers
5.228.0.0/16 42610 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
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
/13:475 /14:841 /15:1541 /16:12381 /17:6415 /18:10842
/19:21044 /20:30202 /21:32106 /22:42325 /23:39848 /24:223276
/25:1364 /26:1592 /27:921 /28:175 /29:64 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2812 3456 Windstream Communications Inc
18566 2035 2085 Covad Communications
6389 1849 3334 bellsouth.net, inc.
8402 1384 1661 Corbina telecom
30036 1350 1417 Mediacom Communications Corp
22773 1231 1888 Cox Communications, Inc.
15557 1165 1221 LDCOM NETWORKS
11492 1160 1197 Cable One
6503 1053 1535 AVANTEL, S.A.
1785 1013 1912 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:581 2:783 3:1 4:13 5:428 6:3
8:455 12:2001 13:1 14:663 15:11 16:3
17:6 20:27 23:203 24:1824 27:1317 31:1015
32:56 33:2 34:2 36:7 37:759 38:828
39:2 40:132 41:3133 42:158 44:3 46:1527
47:2 49:468 50:592 52:13 54:17 55:6
56:1 57:31 58:989 59:528 60:240 61:1295
62:1002 63:2003 64:4262 65:2241 66:4494 67:2051
68:1169 69:3194 70:985 71:522 72:1870 74:2583
75:495 76:323 77:951 78:941 79:488 80:1265
81:956 82:634 83:531 84:626 85:1157 86:806
87:924 88:350 89:1789 90:303 91:5183 92:578
93:1494 94:1635 95:1271 96:416 97:318 98:893
99:39 100:23 101:260 103:1493 105:512 106:118
107:198 108:444 109:1921 110:794 111:957 112:446
113:682 114:655 115:856 116:825 117:733 118:946
119:1261 120:299 121:691 122:1646 123:1170 124:1352
125:1270 128:549 129:186 130:282 131:631 132:302
133:22 134:251 135:61 136:217 137:238 138:342
139:187 140:502 141:280 142:486 143:366 144:487
145:80 146:514 147:268 148:758 149:323 150:157
151:177 152:451 153:182 154:20 155:420 156:222
157:379 158:184 159:642 160:343 161:414 162:408
163:190 164:693 165:416 166:560 167:544 168:959
169:125 170:905 171:149 172:6 173:1721 174:628
175:445 176:575 177:1102 178:1659 180:1344 181:134
182:1043 183:230 184:597 186:2195 187:1244 188:1529
189:1586 190:6094 192:6024 193:5720 194:4560 195:3447
196:1215 197:220 198:3776 199:4975 200:5994 201:1969
202:8712 203:8698 204:4419 205:2542 206:2752 207:2875
208:4057 209:3668 210:2833 211:1536 212:2025 213:1809
214:893 215:88 216:5140 217:1553 218:548 219:316
220:1239 221:532 222:339 223:378
End of report
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