Routing Table Report 00:00 GMT Mon 04 Jul, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 367719
Prefixes after maximum aggregation: 165989
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179766
Total ASes present in the Internet Routing Table: 38092
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31715
Origin ASes announcing only one prefix: 15176
Transit ASes present in the Internet Routing Table: 5145
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3824
Unregistered ASNs in the Routing Table: 512
Number of 32-bit ASNs allocated by the RIRs: 1521
Number of 32-bit ASNs visible in the Routing Table: 1232
Prefixes from 32-bit ASNs in the Routing Table: 2827
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2493482311
Equivalent to 148 /8s, 159 /16s and 133 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 152923
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88010
Total APNIC prefixes after maximum aggregation: 29103
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84876
Unique aggregates announced from the APNIC address blocks: 37025
APNIC Region origin ASes present in the Internet Routing Table: 4479
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1252
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 53
Number of APNIC addresses announced to Internet: 621140417
Equivalent to 37 /8s, 5 /16s and 217 /24s
Percentage of available APNIC address space announced: 78.8
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, 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: 144596
Total ARIN prefixes after maximum aggregation: 74787
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116239
Unique aggregates announced from the ARIN address blocks: 46649
ARIN Region origin ASes present in the Internet Routing Table: 14468
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5513
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819646104
Equivalent to 48 /8s, 218 /16s and 206 /24s
Percentage of available ARIN address space announced: 65.1
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, 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: 89612
Total RIPE prefixes after maximum aggregation: 49370
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82259
Unique aggregates announced from the RIPE address blocks: 52499
RIPE Region origin ASes present in the Internet Routing Table: 15787
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7822
RIPE Region transit ASes present in the Internet Routing Table: 2486
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 908
Number of RIPE addresses announced to Internet: 479440588
Equivalent to 28 /8s, 147 /16s and 174 /24s
Percentage of available RIPE address space announced: 77.2
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: 33957
Total LACNIC prefixes after maximum aggregation: 7624
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33081
Unique aggregates announced from the LACNIC address blocks: 16955
LACNIC Region origin ASes present in the Internet Routing Table: 1475
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 254
Number of LACNIC addresses announced to Internet: 85703432
Equivalent to 5 /8s, 27 /16s and 187 /24s
Percentage of available LACNIC address space announced: 56.8
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8409
Total AfriNIC prefixes after maximum aggregation: 1957
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 6475
Unique aggregates announced from the AfriNIC address blocks: 1965
AfriNIC Region origin ASes present in the Internet Routing Table: 464
AfriNIC Prefixes per ASN: 13.95
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.1
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: 24276736
Equivalent to 1 /8s, 114 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1909 9525 632 Korea Telecom (KIX)
17974 1826 469 41 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 85 TPG Internet Pty Ltd
4755 1475 371 161 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9829 1096 913 47 BSNL National Internet Backbo
9583 1054 77 504 Sify Limited
4808 1025 2062 289 CNCGROUP IP network: China169
17488 973 186 104 Hathway IP Over Cable Interne
18101 934 116 140 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3616 3819 249 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1804 680 121 AppliedTheory Corporation
4323 1657 1098 400 Time Warner Telecom
20115 1592 1532 635 Charter Communications
19262 1450 4806 371 Verizon Global Networks
7018 1376 7086 901 AT&T WorldNet Services
7029 1358 967 205 Windstream Communications Inc
22773 1348 2897 88 Cox Communications, Inc.
6478 1340 248 614 AT&T Worldnet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1043 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 185 Tellcom Iletisim Hizmetleri
3292 522 2080 404 TDC Tele Danmark
6830 514 1780 318 UPC Distribution Services
20940 469 137 361 Akamai Technologies European
8866 452 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 438 593 7 Uni2 Autonomous System
3320 420 8151 367 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1541 282 157 TVCABLE BOGOTA
8151 1428 2724 358 Uninet S.A. de C.V.
28573 1271 996 80 Types of queries are: POCs, o
7303 1000 507 175 Telecom Argentina Stet-France
6503 755 354 75 AVANTEL, S.A.
14420 685 55 81 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 531 230 96 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 795 445 11 TEDATA
24863 789 147 36 LINKdotNET AS number
15475 523 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 212 12 8 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 193 17 12 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3616 3819 249 bellsouth.net, inc.
23456 2827 695 1527 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1909 9525 632 Korea Telecom (KIX)
17974 1826 469 41 PT TELEKOMUNIKASI INDONESIA
1785 1804 680 121 AppliedTheory Corporation
4323 1657 1098 400 Time Warner Telecom
20115 1592 1532 635 Charter Communications
7545 1542 301 85 TPG Internet Pty Ltd
10620 1541 282 157 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1826 1785 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1804 1683 AppliedTheory Corporation
7545 1542 1457 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
4755 1475 1314 Videsh Sanchar Nigam Ltd. Aut
23456 2827 1300 >>UNKNOWN<<
4766 1909 1277 Korea Telecom (KIX)
22773 1348 1260 Cox Communications, Inc.
4323 1657 1257 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/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
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
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
27.0.128.0/17 7514 Media Exchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:462 /14:808 /15:1425 /16:12092 /17:6125 /18:10095
/19:19978 /20:27023 /21:26633 /22:35047 /23:34109 /24:190562
/25:390 /26:356 /27:185 /28:350 /29:292 /30:702
/31:65 /32:646
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2224 3616 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1392 2827 >>UNKNOWN<<
6478 1311 1340 AT&T Worldnet Services
11492 1091 1137 Cable One
7029 1057 1358 Windstream Communications Inc
7011 1055 1156 Citizens Utilities
1785 1052 1804 AppliedTheory Corporation
286 903 1043 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:320 2:70 4:20 5:1 6:3 8:337
12:1979 13:1 14:470 15:15 16:3 17:8
20:10 23:13 24:1677 27:811 31:492 32:135
33:4 34:2 36:4 37:1 38:746 39:3
40:103 41:2553 42:31 44:3 46:1005 47:3
49:196 50:435 52:13 54:2 55:4 56:2
57:43 58:861 59:478 60:386 61:1180 62:1046
63:1949 64:3967 65:2294 66:3896 67:1933 68:1269
69:3146 70:803 71:389 72:1924 73:2 74:2430
75:325 76:349 77:926 78:718 79:481 80:1122
81:854 82:518 83:468 84:697 85:1088 86:554
87:779 88:341 89:1569 90:211 91:3947 92:537
93:1087 94:1357 95:872 96:448 97:255 98:906
99:36 101:77 103:100 106:10 107:19 108:80
109:1026 110:616 111:713 112:304 113:410 114:550
115:670 116:984 117:664 118:850 119:1151 120:309
121:686 122:1603 123:964 124:1286 125:1239 128:247
129:176 130:168 131:575 132:112 133:21 134:215
135:48 136:201 137:136 138:299 139:128 140:480
141:241 142:406 143:416 144:484 145:54 146:450
147:224 148:641 149:247 150:163 151:189 152:330
153:180 154:4 155:399 156:198 157:352 158:136
159:451 160:314 161:210 162:309 163:165 164:510
165:377 166:528 167:432 168:740 169:159 170:847
171:78 172:1 173:1651 174:617 175:376 176:143
177:151 178:973 180:881 181:22 182:491 183:223
184:407 185:1 186:1260 187:729 188:892 189:943
190:4940 192:5925 193:4994 194:3556 195:3162 196:1235
197:41 198:3581 199:3973 200:5540 201:1498 202:8380
203:8407 204:4228 205:2361 206:2755 207:2815 208:3982
209:3470 210:2698 211:1458 212:2155 213:1787 214:768
215:69 216:4949 217:1653 218:547 219:364 220:1207
221:494 222:361 223:181
End of report
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