[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Ene 27 16:59:49 BRST 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 en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
Routing Table Report 04:00 +10GMT Sat 28 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 394446
Prefixes after maximum aggregation: 169250
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191523
Total ASes present in the Internet Routing Table: 39956
Prefixes per ASN: 9.87
Origin-only ASes present in the Internet Routing Table: 32670
Origin ASes announcing only one prefix: 15524
Transit ASes present in the Internet Routing Table: 5393
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 34
Max AS path prepend of ASN (38964) 31
Prefixes from unregistered ASNs in the Routing Table: 320
Unregistered ASNs in the Routing Table: 120
Number of 32-bit ASNs allocated by the RIRs: 2225
Number of 32-bit ASNs visible in the Routing Table: 1893
Prefixes from 32-bit ASNs in the Routing Table: 4552
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 124
Number of addresses announced to Internet: 2512489808
Equivalent to 149 /8s, 193 /16s and 141 /24s
Percentage of available address space announced: 67.8
Percentage of allocated address space announced: 67.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 166987
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97720
Total APNIC prefixes after maximum aggregation: 31635
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 94001
Unique aggregates announced from the APNIC address blocks: 39037
APNIC Region origin ASes present in the Internet Routing Table: 4647
APNIC Prefixes per ASN: 20.23
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 138
Number of APNIC addresses announced to Internet: 635145056
Equivalent to 37 /8s, 219 /16s and 139 /24s
Percentage of available APNIC address space announced: 80.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 147868
Total ARIN prefixes after maximum aggregation: 75244
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119897
Unique aggregates announced from the ARIN address blocks: 49172
ARIN Region origin ASes present in the Internet Routing Table: 14873
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5685
ARIN Region transit ASes present in the Internet Routing Table: 1582
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 805162560
Equivalent to 47 /8s, 253 /16s and 206 /24s
Percentage of available ARIN address space announced: 64.0
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, 173/8,
174/8, 184/8, 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: 97463
Total RIPE prefixes after maximum aggregation: 52172
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89393
Unique aggregates announced from the RIPE address blocks: 55863
RIPE Region origin ASes present in the Internet Routing Table: 16289
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2592
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1312
Number of RIPE addresses announced to Internet: 498545288
Equivalent to 29 /8s, 183 /16s and 50 /24s
Percentage of available RIPE address space announced: 80.3
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 37647
Total LACNIC prefixes after maximum aggregation: 8038
LACNIC Deaggregation factor: 4.68
Prefixes being announced from the LACNIC address blocks: 37201
Unique aggregates announced from the LACNIC address blocks: 19337
LACNIC Region origin ASes present in the Internet Routing Table: 1567
LACNIC Prefixes per ASN: 23.74
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 425
Number of LACNIC addresses announced to Internet: 95771016
Equivalent to 5 /8s, 181 /16s and 89 /24s
Percentage of available LACNIC address space announced: 63.4
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 9026
Total AfriNIC prefixes after maximum aggregation: 2089
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7047
Unique aggregates announced from the AfriNIC address blocks: 2156
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.90
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 118
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: 4
Number of AfriNIC addresses announced to Internet: 30775040
Equivalent to 1 /8s, 213 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 45.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2472 11101 979 Korea Telecom (KIX)
17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
4755 1527 385 155 TATA Communications formerly
7552 1424 1064 7 Vietel Corporation
9829 1167 989 28 BSNL National Internet Backbo
4808 1099 2051 312 CNCGROUP IP network: China169
9583 1068 78 505 Sify Limited
24560 1015 385 167 Bharti Airtel Ltd., Telemedia
18101 945 130 154 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 3446 3807 201 bellsouth.net, inc.
7029 3227 1017 200 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1864 679 123 PaeTec Communications, Inc.
20115 1624 1552 628 Charter Communications
4323 1608 1062 384 Time Warner Telecom
22773 1520 2910 109 Cox Communications, Inc.
30036 1453 255 729 Mediacom Communications Corp
19262 1386 4683 400 Verizon Global Networks
7018 1301 7008 848 AT&T WorldNet Services
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 1744 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 LDCOM NETWORKS
6830 642 1927 412 UPC Distribution Services
34984 641 188 172 BILISIM TELEKOM
20940 589 193 463 Akamai Technologies European
12479 549 636 53 Uni2 Autonomous System
3320 531 8162 397 Deutsche Telekom AG
8551 529 360 81 Bezeq International
31148 524 36 8 FreeNet ISP
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 1729 322 168 TVCABLE BOGOTA
28573 1637 1069 71 NET Servicos de Comunicao S.A
8151 1460 2999 344 UniNet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
11172 687 95 72 Servicios Alestra S.A de C.V
27947 650 73 99 Telconet S.A
22047 582 322 17 VTR PUNTO NET S.A.
3816 551 238 92 Empresa Nacional de Telecomun
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 539 434 68 AVANTEL, 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 1207 958 13 TEDATA
24863 833 156 44 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 163 664 82 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 3446 3807 201 bellsouth.net, inc.
7029 3227 1017 200 Windstream Communications Inc
4766 2472 11101 979 Korea Telecom (KIX)
18566 2093 382 177 Covad Communications
1785 1864 679 123 PaeTec Communications, Inc.
8402 1744 480 15 Corbina telecom
10620 1729 322 168 TVCABLE BOGOTA
17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA
7545 1642 303 86 TPG Internet Pty Ltd
28573 1637 1069 71 NET Servicos de Comunicao S.A
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 3227 3027 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1864 1741 PaeTec Communications, Inc.
8402 1744 1729 Corbina telecom
17974 1714 1679 PT TELEKOMUNIKASI INDONESIA
28573 1637 1566 NET Servicos de Comunicao S.A
10620 1729 1561 TVCABLE BOGOTA
7545 1642 1556 TPG Internet Pty Ltd
4766 2472 1493 Korea Telecom (KIX)
7552 1424 1417 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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
37.72.0.0/19 29119 ServiHosting Autonomous Syste
37.72.48.0/20 23456 32-bit ASN transition
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 /8:19 /9:12 /10:27 /11:80 /12:232
/13:455 /14:817 /15:1463 /16:12154 /17:6161 /18:10269
/19:20310 /20:28154 /21:29112 /22:39487 /23:36820 /24:205227
/25:1181 /26:1421 /27:785 /28:168 /29:60 /30:14
/31:0 /32:18
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2847 3227 Windstream Communications Inc
6389 2116 3446 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1723 1744 Corbina telecom
10620 1624 1729 TVCABLE BOGOTA
30036 1412 1453 Mediacom Communications Corp
11492 1089 1125 Cable One
1785 1064 1864 PaeTec Communications, Inc.
15557 1046 1095 LDCOM NETWORKS
7011 1033 1149 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:510 2:478 4:14 5:1 6:3 8:378
12:1957 13:1 14:591 15:11 16:3 17:6
20:9 23:121 24:1716 27:1186 31:827 32:65
33:2 34:2 36:8 37:106 38:794 40:114
41:3175 42:87 43:1 44:3 46:1262 47:3
49:320 50:515 52:13 54:1 55:7 56:3
57:38 58:954 59:491 60:345 61:1178 62:922
63:1977 64:4130 65:2285 66:4409 67:2034 68:1168
69:3148 70:915 71:431 72:1799 74:2647 75:446
76:321 77:967 78:921 79:512 80:1208 81:872
82:561 83:532 84:583 85:1152 86:748 87:912
88:342 89:1544 90:258 91:4473 92:536 93:1554
94:1319 95:1125 96:414 97:306 98:793 99:38
100:20 101:130 103:688 106:4 107:137 108:129
109:1459 110:690 111:835 112:428 113:527 114:598
115:756 116:868 117:723 118:901 119:1254 120:354
121:681 122:1625 123:1058 124:1323 125:1359 128:538
129:190 130:211 131:591 132:162 133:21 134:233
135:59 136:213 137:153 138:290 139:145 140:488
141:260 142:378 143:400 144:508 145:68 146:487
147:226 148:695 149:271 150:166 151:192 152:446
153:170 154:7 155:398 156:210 157:367 158:154
159:509 160:333 161:237 162:339 163:188 164:532
165:391 166:561 167:458 168:765 169:147 170:833
171:112 172:4 173:1779 174:570 175:414 176:392
177:458 178:1234 180:1224 181:43 182:700 183:276
184:443 185:1 186:1506 187:829 188:974 189:1175
190:5395 192:5974 193:5483 194:4209 195:3392 196:1290
197:171 198:3588 199:4341 200:5704 201:1721 202:8424
203:8599 204:4348 205:2437 206:2749 207:2818 208:4046
209:3557 210:2733 211:1477 212:1978 213:1828 214:852
215:98 216:4975 217:1474 218:557 219:342 220:1252
221:549 222:321 223:273
End of report
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