[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 17 18:50:44 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 18 Aug, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 422243
Prefixes after maximum aggregation: 177415
Deaggregation factor: 2.38
Unique aggregates announced to Internet: 204508
Total ASes present in the Internet Routing Table: 41840
Prefixes per ASN: 10.09
Origin-only ASes present in the Internet Routing Table: 33461
Origin ASes announcing only one prefix: 15721
Transit ASes present in the Internet Routing Table: 5622
Transit-only ASes present in the Internet Routing Table: 138
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: 544
Unregistered ASNs in the Routing Table: 179
Number of 32-bit ASNs allocated by the RIRs: 3133
Number of 32-bit ASNs visible in the Routing Table: 2757
Prefixes from 32-bit ASNs in the Routing Table: 7094
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 173
Number of addresses announced to Internet: 2591522956
Equivalent to 154 /8s, 119 /16s and 128 /24s
Percentage of available address space announced: 69.9
Percentage of allocated address space announced: 70.0
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.2
Total number of prefixes smaller than registry allocations: 148724
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 101840
Total APNIC prefixes after maximum aggregation: 32662
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 102409
Unique aggregates announced from the APNIC address blocks: 42280
APNIC Region origin ASes present in the Internet Routing Table: 4733
APNIC Prefixes per ASN: 21.64
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 762
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: 282
Number of APNIC addresses announced to Internet: 708149376
Equivalent to 42 /8s, 53 /16s and 128 /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: 153791
Total ARIN prefixes after maximum aggregation: 77875
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 154799
Unique aggregates announced from the ARIN address blocks: 68795
ARIN Region origin ASes present in the Internet Routing Table: 15221
ARIN Prefixes per ASN: 10.17
ARIN Region origin ASes announcing only one prefix: 5753
ARIN Region transit ASes present in the Internet Routing Table: 1610
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: 1084328576
Equivalent to 64 /8s, 161 /16s and 138 /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: 106635
Total RIPE prefixes after maximum aggregation: 56204
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 108860
Unique aggregates announced from the RIPE address blocks: 67735
RIPE Region origin ASes present in the Internet Routing Table: 16773
RIPE Prefixes per ASN: 6.49
RIPE Region origin ASes announcing only one prefix: 8129
RIPE Region transit ASes present in the Internet Routing Table: 2721
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: 1798
Number of RIPE addresses announced to Internet: 642798564
Equivalent to 38 /8s, 80 /16s and 83 /24s
Percentage of available RIPE address space announced: 93.4
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: 43108
Total LACNIC prefixes after maximum aggregation: 8424
LACNIC Deaggregation factor: 5.12
Prefixes being announced from the LACNIC address blocks: 45921
Unique aggregates announced from the LACNIC address blocks: 22114
LACNIC Region origin ASes present in the Internet Routing Table: 1627
LACNIC Prefixes per ASN: 28.22
LACNIC Region origin ASes announcing only one prefix: 425
LACNIC Region transit ASes present in the Internet Routing Table: 318
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: 654
Number of LACNIC addresses announced to Internet: 114227624
Equivalent to 6 /8s, 206 /16s and 249 /24s
Percentage of available LACNIC address space announced: 68.1
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: 9625
Total AfriNIC prefixes after maximum aggregation: 2192
AfriNIC Deaggregation factor: 4.39
Prefixes being announced from the AfriNIC address blocks: 10081
Unique aggregates announced from the AfriNIC address blocks: 3441
AfriNIC Region origin ASes present in the Internet Routing Table: 556
AfriNIC Prefixes per ASN: 18.13
AfriNIC Region origin ASes announcing only one prefix: 170
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: 6
Number of AfriNIC addresses announced to Internet: 41662208
Equivalent to 2 /8s, 123 /16s and 183 /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 2760 11117 1249 Korea Telecom (KIX)
17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1715 301 87 TPG Internet Pty Ltd
4755 1607 386 158 TATA Communications formerly
9829 1312 1084 31 BSNL National Internet Backbo
9583 1170 86 509 Sify Limited
4808 1133 2055 326 CNCGROUP IP network: China169
7552 1104 1062 11 Vietel Corporation
24560 1040 386 160 Bharti Airtel Ltd., Telemedia
9498 998 294 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
7029 3441 990 154 Windstream Communications Inc
6389 3368 3772 191 bellsouth.net, inc.
18566 2087 382 180 Covad Communications
1785 1939 680 128 PaeTec Communications, Inc.
22773 1726 2914 127 Cox Communications, Inc.
20115 1647 1572 611 Charter Communications
4323 1575 1026 386 Time Warner Telecom
30036 1456 290 775 Mediacom Communications Corp
7018 1237 10022 807 AT&T WorldNet Services
11492 1194 217 348 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 1530 544 16 Corbina telecom
15557 1216 2247 55 LDCOM NETWORKS
12479 827 764 85 Uni2 Autonomous System
34984 750 189 175 BILISIM TELEKOM
6830 715 2311 446 UPC Distribution Services
20940 709 229 550 Akamai Technologies European
31148 708 37 9 FreeNet ISP
2118 685 97 14 EUnet/RELCOM Autonomous Syste
13188 657 100 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 2085 354 216 TVCABLE BOGOTA
28573 1999 1242 55 NET Servicos de Comunicao S.A
7303 1563 1033 200 Telecom Argentina Stet-France
6503 1530 435 68 AVANTEL, S.A.
8151 1474 3038 342 UniNet S.A. de C.V.
6458 883 81 15 GUATEL
27947 715 74 95 Telconet S.A
3816 602 255 90 Empresa Nacional de Telecomun
11172 591 85 70 Servicios Alestra S.A de C.V
22047 580 326 15 VTR PUNTO NET 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
8452 893 958 13 TEDATA
24863 869 275 36 LINKdotNET AS number
36998 532 48 3 MOBITEL
6713 517 650 19 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 262 904 223 The Internet Solution
12258 195 28 62 Vodacom Internet Company
33776 194 13 11 Starcomms Nigeria Limited
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 3441 990 154 Windstream Communications Inc
6389 3368 3772 191 bellsouth.net, inc.
4766 2760 11117 1249 Korea Telecom (KIX)
17974 2342 702 54 PT TELEKOMUNIKASI INDONESIA
18566 2087 382 180 Covad Communications
10620 2085 354 216 TVCABLE BOGOTA
28573 1999 1242 55 NET Servicos de Comunicao S.A
1785 1939 680 128 PaeTec Communications, Inc.
22773 1726 2914 127 Cox Communications, Inc.
7545 1715 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
6389 3368 3177 bellsouth.net, inc.
17974 2342 2288 PT TELEKOMUNIKASI INDONESIA
28573 1999 1944 NET Servicos de Comunicao S.A
18566 2087 1907 Covad Communications
10620 2085 1869 TVCABLE BOGOTA
1785 1939 1811 PaeTec Communications, Inc.
7545 1715 1628 TPG Internet Pty Ltd
22773 1726 1599 Cox Communications, Inc.
8402 1530 1514 Corbina telecom
4766 2760 1511 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
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.
59457 UNALLOCATED 5.149.71.0/24 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 /8:20 /9:14 /10:29 /11:84 /12:237
/13:475 /14:846 /15:1531 /16:12360 /17:6383 /18:10784
/19:21006 /20:30060 /21:31926 /22:41885 /23:39735 /24:220985
/25:1257 /26:1502 /27:849 /28:171 /29:62 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2801 3441 Windstream Communications Inc
18566 2037 2087 Covad Communications
6389 1856 3368 bellsouth.net, inc.
30036 1390 1456 Mediacom Communications Corp
8402 1258 1530 Corbina telecom
15557 1160 1216 LDCOM NETWORKS
11492 1157 1194 Cable One
22773 1132 1726 Cox Communications, Inc.
6503 1051 1530 AVANTEL, S.A.
1785 1041 1939 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:563 2:739 3:1 4:13 5:353 6:3
8:441 12:2010 13:1 14:641 15:11 16:3
17:6 20:26 23:201 24:1801 27:1329 31:1031
32:56 33:2 34:2 36:8 37:732 38:823
39:1 40:133 41:2848 42:156 44:3 46:1577
47:2 49:436 50:583 52:13 54:15 55:6
56:1 57:31 58:986 59:517 60:239 61:1283
62:991 63:2013 64:4264 65:2246 66:4539 67:2053
68:1158 69:3212 70:987 71:522 72:1866 74:2606
75:490 76:330 77:946 78:911 79:499 80:1271
81:955 82:634 83:535 84:622 85:1139 86:805
87:935 88:347 89:1812 90:301 91:5107 92:591
93:1473 94:1583 95:1272 96:407 97:317 98:897
99:39 100:22 101:257 103:1389 105:512 106:113
107:193 108:428 109:1907 110:796 111:954 112:425
113:678 114:656 115:841 116:881 117:726 118:942
119:1249 120:300 121:694 122:1656 123:1169 124:1354
125:1265 128:522 129:185 130:275 131:636 132:298
133:22 134:246 135:61 136:216 137:239 138:338
139:185 140:501 141:269 142:483 143:359 144:488
145:78 146:510 147:254 148:781 149:300 150:155
151:186 152:457 153:175 154:20 155:412 156:225
157:381 158:178 159:637 160:345 161:411 162:401
163:189 164:685 165:413 166:565 167:534 168:954
169:125 170:910 171:145 172:5 173:1726 174:634
175:437 176:603 177:1004 178:1679 180:1338 181:123
182:1035 183:227 184:589 186:2069 187:1130 188:1464
189:1573 190:6153 192:6015 193:5456 194:4234 195:3261
196:1230 197:202 198:3708 199:4913 200:6027 201:1968
202:8706 203:8645 204:4398 205:2534 206:2813 207:2855
208:4041 209:3637 210:2770 211:1539 212:2015 213:1802
214:876 215:85 216:5113 217:1553 218:547 219:316
220:1240 221:529 222:335 223:376
End of report
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