[afnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Jul 23 18:11:10 UTC 2010
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 NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG and
the RIPE Routing Working Group.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfs at cisco.com>.
Routing Table Report 04:00 +10GMT Sat 24 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 326536
Prefixes after maximum aggregation: 150103
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 159244
Total ASes present in the Internet Routing Table: 34425
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 29885
Origin ASes announcing only one prefix: 14463
Transit ASes present in the Internet Routing Table: 4540
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 304
Unregistered ASNs in the Routing Table: 118
Number of 32-bit ASNs allocated by the RIRs: 701
Prefixes from 32-bit ASNs in the Routing Table: 851
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 162
Number of addresses announced to Internet: 2277322752
Equivalent to 135 /8s, 189 /16s and 48 /24s
Percentage of available address space announced: 61.4
Percentage of allocated address space announced: 66.2
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.9
Total number of prefixes smaller than registry allocations: 155564
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79446
Total APNIC prefixes after maximum aggregation: 27173
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 76327
Unique aggregates announced from the APNIC address blocks: 33533
APNIC Region origin ASes present in the Internet Routing Table: 4123
APNIC Prefixes per ASN: 18.51
APNIC Region origin ASes announcing only one prefix: 1135
APNIC Region transit ASes present in the Internet Routing Table: 637
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 532226080
Equivalent to 31 /8s, 185 /16s and 32 /24s
Percentage of available APNIC address space announced: 79.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 43/8, 58/8, 59/8, 60/8,
61/8, 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: 134651
Total ARIN prefixes after maximum aggregation: 69494
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 107489
Unique aggregates announced from the ARIN address blocks: 42017
ARIN Region origin ASes present in the Internet Routing Table: 13802
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5273
ARIN Region transit ASes present in the Internet Routing Table: 1358
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729830688
Equivalent to 43 /8s, 128 /16s and 85 /24s
Percentage of available ARIN address space announced: 62.1
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, 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, 54/8,
55/8, 56/8, 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, 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: 75032
Total RIPE prefixes after maximum aggregation: 43448
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 68199
Unique aggregates announced from the RIPE address blocks: 44519
RIPE Region origin ASes present in the Internet Routing Table: 14632
RIPE Prefixes per ASN: 4.66
RIPE Region origin ASes announcing only one prefix: 7521
RIPE Region transit ASes present in the Internet Routing Table: 2185
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 433475968
Equivalent to 25 /8s, 214 /16s and 81 /24s
Percentage of available RIPE address space announced: 76.0
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 31/8, 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,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 29026
Total LACNIC prefixes after maximum aggregation: 6973
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27538
Unique aggregates announced from the LACNIC address blocks: 14474
LACNIC Region origin ASes present in the Internet Routing Table: 1311
LACNIC Prefixes per ASN: 21.01
LACNIC Region origin ASes announcing only one prefix: 414
LACNIC Region transit ASes present in the Internet Routing Table: 232
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 75723840
Equivalent to 4 /8s, 131 /16s and 116 /24s
Percentage of available LACNIC address space announced: 56.4
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 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: 7279
Total AfriNIC prefixes after maximum aggregation: 1870
AfriNIC Deaggregation factor: 3.89
Prefixes being announced from the AfriNIC address blocks: 5589
Unique aggregates announced from the AfriNIC address blocks: 1640
AfriNIC Region origin ASes present in the Internet Routing Table: 383
AfriNIC Prefixes per ASN: 14.59
AfriNIC Region origin ASes announcing only one prefix: 120
AfriNIC Region transit ASes present in the Internet Routing Table: 84
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19892224
Equivalent to 1 /8s, 47 /16s and 136 /24s
Percentage of available AfriNIC address space announced: 59.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1857 8409 489 Korea Telecom (KIX)
4755 1474 298 160 TATA Communications formerly
7545 1361 232 104 TPG Internet Pty Ltd
17488 1334 147 128 Hathway IP Over Cable Interne
17974 1179 286 55 PT TELEKOMUNIKASI INDONESIA
9583 1002 74 486 Sify Limited
24560 985 304 179 Bharti Airtel Ltd., Telemedia
4808 827 1575 219 CNCGROUP IP network: China169
9829 813 685 32 BSNL National Internet Backbo
4134 783 21740 411 CHINANET-BACKBONE
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3889 3718 287 bellsouth.net, inc.
4323 2723 1112 393 Time Warner Telecom
19262 1942 4567 278 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
20115 1488 1522 654 Charter Communications
7018 1477 5734 960 AT&T WorldNet Services
2386 1287 568 909 AT&T Data Communications Serv
6478 1261 252 187 AT&T Worldnet Services
22773 1172 2858 61 Cox Communications, Inc.
3356 1159 10878 403 Level 3 Communications, LLC
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 653 56 6 United Telecom of Georgia
9198 497 202 13 Kazakhtelecom Data Network Ad
3292 449 2026 390 TDC Tele Danmark
30890 442 111 206 Evolva Telecom
702 413 1869 325 UUNET - Commercial IP service
8866 403 117 18 Bulgarian Telecommunication C
8551 401 353 46 Bezeq International
3320 375 7329 326 Deutsche Telekom AG
3301 371 1414 326 TeliaNet Sweden
34984 363 89 183 BILISIM TELEKOM
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1460 3049 251 UniNet S.A. de C.V.
10620 1072 240 149 TVCABLE BOGOTA
28573 1011 818 100 NET Servicos de Comunicao S.A
7303 768 396 103 Telecom Argentina Stet-France
6503 700 177 218 AVANTEL, S.A.
22047 553 310 15 VTR PUNTO NET S.A.
14420 499 32 72 CORPORACION NACIONAL DE TELEC
3816 492 208 87 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 448 99 76 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1107 445 10 TEDATA
24863 727 147 39 LINKdotNET AS number
36992 651 279 185 Etisalat MISR
3741 269 898 231 The Internet Solution
33776 220 12 12 Starcomms Nigeria Limited
2018 210 245 62 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 189 78 9 RAYA Telecom - Egypt
29571 183 19 10 Ci Telecom Autonomous system
16637 159 423 93 MTN Network Solutions
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3889 3718 287 bellsouth.net, inc.
4323 2723 1112 393 Time Warner Telecom
19262 1942 4567 278 Verizon Global Networks
4766 1857 8409 489 Korea Telecom (KIX)
1785 1780 698 129 PaeTec Communications, Inc.
20115 1488 1522 654 Charter Communications
7018 1477 5734 960 AT&T WorldNet Services
4755 1474 298 160 TATA Communications formerly
8151 1460 3049 251 UniNet S.A. de C.V.
7545 1361 232 104 TPG Internet Pty Ltd
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2723 2330 Time Warner Telecom
19262 1942 1664 Verizon Global Networks
1785 1780 1651 PaeTec Communications, Inc.
4766 1857 1368 Korea Telecom (KIX)
4755 1474 1314 TATA Communications formerly
7545 1361 1257 TPG Internet Pty Ltd
8151 1460 1209 UniNet S.A. de C.V.
17488 1334 1206 Hathway IP Over Cable Interne
17974 1179 1124 PT TELEKOMUNIKASI INDONESIA
22773 1172 1111 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 6453 Teleglobe Inc.
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
Complete listing at http://thyme.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 /8:21 /9:10 /10:25 /11:68 /12:198
/13:408 /14:710 /15:1296 /16:11185 /17:5336 /18:9163
/19:18517 /20:23089 /21:23139 /22:30043 /23:29643 /24:170473
/25:1046 /26:1310 /27:768 /28:28 /29:47 /30:6
/31:0 /32:7
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2490 3889 bellsouth.net, inc.
4766 1487 1857 Korea Telecom (KIX)
4323 1394 2723 Time Warner Telecom
1785 1242 1780 PaeTec Communications, Inc.
17488 1078 1334 Hathway IP Over Cable Interne
18566 1069 1088 Covad Communications
11492 1067 1158 Cable One
8452 1000 1107 TEDATA
10620 988 1072 TVCABLE BOGOTA
19262 912 1942 Verizon Global Networks
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:12 2:2 4:13 8:290 12:2018 13:7
14:1 15:21 16:3 17:8 20:6 24:1463
27:251 31:1 32:49 33:12 38:691 40:98
41:2441 44:3 46:10 47:17 52:9 55:5
56:2 57:28 58:761 59:504 60:462 61:1068
62:1034 63:1972 64:3693 65:2344 66:4046 67:1823
68:1093 69:2705 70:708 71:446 72:1946 73:2
74:2261 75:250 76:318 77:900 78:622 79:433
80:995 81:767 82:495 83:439 84:682 85:1044
86:457 87:685 88:340 89:1560 90:95 91:2895
92:506 93:991 94:1403 95:654 96:528 97:210
98:614 99:33 108:105 109:583 110:391 111:533
112:287 113:327 114:437 115:573 116:1083 117:654
118:481 119:877 120:135 121:727 122:1564 123:948
124:1115 125:1312 128:227 129:198 130:193 131:557
132:247 133:17 134:195 135:45 136:242 137:145
138:265 139:104 140:484 141:196 142:342 143:373
144:465 145:50 146:450 147:168 148:662 149:290
150:155 151:230 152:296 153:168 154:2 155:357
156:159 157:324 158:110 159:357 160:317 161:183
162:255 163:174 164:410 165:367 166:460 167:414
168:646 169:157 170:716 171:59 172:2 173:950
174:502 175:152 176:1 178:314 180:466 182:198
183:240 184:115 186:519 187:379 188:1012 189:750
190:3817 192:5742 193:4721 194:3408 195:2808 196:1188
198:3572 199:3480 200:5324 201:1551 202:7989 203:8353
204:4073 205:2311 206:2493 207:3112 208:3866 209:3458
210:2558 211:1272 212:1712 213:1661 214:641 215:69
216:4715 217:1522 218:500 219:485 220:1144 221:402
222:317 223:1
End of report
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