Routing Table Report 00:00 GMT Tue 30 Aug, 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: 373203
Prefixes after maximum aggregation: 168073
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178357
Total ASes present in the Internet Routing Table: 38611
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32176
Origin ASes announcing only one prefix: 15380
Transit ASes present in the Internet Routing Table: 5072
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 35
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4359
Unregistered ASNs in the Routing Table: 674
Number of 32-bit ASNs allocated by the RIRs: 1685
Number of 32-bit ASNs visible in the Routing Table: 1363
Prefixes from 32-bit ASNs in the Routing Table: 3162
Special use prefixes present in the Routing Table: 79
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2303544847
Equivalent to 137 /8s, 77 /16s and 78 /24s
Percentage of available address space announced: 62.1
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 154731
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90845
Total APNIC prefixes after maximum aggregation: 29467
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 87436
Unique aggregates announced from the APNIC address blocks: 36642
APNIC Region origin ASes present in the Internet Routing Table: 4534
APNIC Prefixes per ASN: 19.28
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 77
Number of APNIC addresses announced to Internet: 609578496
Equivalent to 36 /8s, 85 /16s and 110 /24s
Percentage of available APNIC address space announced: 77.3
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: 145999
Total ARIN prefixes after maximum aggregation: 75339
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117630
Unique aggregates announced from the ARIN address blocks: 44689
ARIN Region origin ASes present in the Internet Routing Table: 14603
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5590
ARIN Region transit ASes present in the Internet Routing Table: 1488
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666650392
Equivalent to 39 /8s, 188 /16s and 71 /24s
Percentage of available ARIN address space announced: 53.0
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: 89894
Total RIPE prefixes after maximum aggregation: 49991
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 82252
Unique aggregates announced from the RIPE address blocks: 52521
RIPE Region origin ASes present in the Internet Routing Table: 15937
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7928
RIPE Region transit ASes present in the Internet Routing Table: 2444
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 975
Number of RIPE addresses announced to Internet: 473604044
Equivalent to 28 /8s, 58 /16s and 159 /24s
Percentage of available RIPE address space announced: 76.3
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: 34767
Total LACNIC prefixes after maximum aggregation: 7736
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33971
Unique aggregates announced from the LACNIC address blocks: 17518
LACNIC Region origin ASes present in the Internet Routing Table: 1511
LACNIC Prefixes per ASN: 22.48
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 295
Number of LACNIC addresses announced to Internet: 87746312
Equivalent to 5 /8s, 58 /16s and 231 /24s
Percentage of available LACNIC address space announced: 58.1
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8328
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 6426
Unique aggregates announced from the AfriNIC address blocks: 2023
AfriNIC Region origin ASes present in the Internet Routing Table: 479
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 148
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26788864
Equivalent to 1 /8s, 152 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 39.9
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
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11038 646 Korea Telecom (KIX)
7545 1544 301 83 TPG Internet Pty Ltd
4755 1535 634 166 Videsh Sanchar Nigam Ltd. Aut
7552 1414 1064 7 Vietel Corporation
24560 1197 336 189 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
17488 1036 191 149 Hathway IP Over Cable Interne
4808 1031 2075 296 CNCGROUP IP network: China169
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 3579 3817 228 bellsouth.net, inc.
18566 1912 364 240 Covad Communications
1785 1825 681 123 AppliedTheory Corporation
7029 1617 1033 208 Windstream Communications Inc
4323 1615 1101 396 Time Warner Telecom
20115 1589 1539 632 Charter Communications
22773 1442 2903 96 Cox Communications, Inc.
19262 1405 4778 395 Verizon Global Networks
7018 1339 7068 879 AT&T WorldNet Services
2386 1214 515 877 AT&T Data Communications Serv
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 1033 797 186 KPNQwest Backbone AS
34984 541 107 182 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 523 1810 321 UPC Distribution Services
3292 521 2080 405 TDC Tele Danmark
20940 497 148 387 Akamai Technologies European
12479 462 593 7 Uni2 Autonomous System
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 57 AzerSat LLC.
3320 422 8149 368 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 1626 297 153 TVCABLE BOGOTA
8151 1445 2759 350 Uninet S.A. de C.V.
28573 1262 996 67 Types of queries are: POCs, o
7303 1057 578 171 Telecom Argentina Stet-France
14420 711 56 87 Types of queries are: POCs, o
6503 603 450 70 AVANTEL, S.A.
22047 578 322 17 Types of queries are: POCs, o
27947 573 56 78 Telconet S.A
10481 548 430 20 Prima S.A.
3816 534 232 97 COLOMBIA TELECOMUNICACIONES S
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
24863 809 147 42 LINKdotNET AS number
8452 626 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 198 12 22 Starcomms Nigeria Limited
12258 195 28 62 YEBO-AS
24835 176 70 11 RAYA Telecom - Egypt
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 3579 3817 228 bellsouth.net, inc.
23456 3162 746 1695 >>UNKNOWN<<
17974 1983 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1941 11038 646 Korea Telecom (KIX)
18566 1912 364 240 Covad Communications
1785 1825 681 123 AppliedTheory Corporation
10620 1626 297 153 TVCABLE BOGOTA
7029 1617 1033 208 Windstream Communications Inc
4323 1615 1101 396 Time Warner Telecom
20115 1589 1539 632 Charter Communications
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 1983 1952 PT TELEKOMUNIKASI INDONESIA
1785 1825 1702 AppliedTheory Corporation
18566 1912 1672 Covad Communications
10620 1626 1473 TVCABLE BOGOTA
23456 3162 1467 >>UNKNOWN<<
7545 1544 1461 TPG Internet Pty Ltd
7029 1617 1409 Windstream Communications Inc
7552 1414 1407 Vietel Corporation
4755 1535 1369 Videsh Sanchar Nigam Ltd. Aut
22773 1442 1346 Cox Communications, Inc.
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 7018 AT&T WorldNet Servic
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:20 /9:12 /10:27 /11:81 /12:233
/13:461 /14:803 /15:1441 /16:12050 /17:6197 /18:10265
/19:20104 /20:27810 /21:27185 /22:36158 /23:34947 /24:193578
/25:77 /26:86 /27:118 /28:293 /29:125 /30:542
/31:98 /32:492
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2210 3579 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1555 3162 >>UNKNOWN<<
10620 1521 1626 TVCABLE BOGOTA
7029 1301 1617 Windstream Communications Inc
11492 1105 1151 Cable One
7011 1061 1186 Citizens Utilities
1785 1053 1825 AppliedTheory Corporation
22773 937 1442 Cox Communications, Inc.
30036 930 958 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:366 2:46 4:19 5:1 6:3 8:346
12:1958 13:1 14:524 15:13 16:3 17:5
20:10 23:31 24:1677 27:913 31:517 32:149
33:4 34:2 36:4 38:737 40:107 41:2468
42:50 44:3 46:1076 47:3 49:226 50:422
52:13 54:2 55:6 56:2 57:45 58:865
59:501 60:376 61:1176 62:1102 63:1955 64:4057
65:2309 66:3974 67:1960 68:1288 69:3235 70:825
71:374 72:1875 73:1 74:2466 75:342 76:345
77:867 78:710 79:484 80:1110 81:829 82:510
83:479 84:692 85:1087 86:519 87:854 88:343
89:1558 90:229 91:4056 92:528 93:1154 94:1354
95:875 96:422 97:268 98:939 99:37 101:88
103:243 106:79 107:36 108:83 109:1023 110:644
111:737 112:315 113:416 114:601 115:700 116:1007
117:683 118:884 119:1193 120:331 121:703 122:1618
123:1024 124:1320 125:1330 128:248 129:180 130:166
131:578 132:118 133:21 134:214 135:50 136:214
137:135 138:291 139:129 140:488 141:286 142:390
143:430 144:484 145:61 146:461 147:235 148:689
149:251 150:155 151:190 152:441 153:179 154:5
155:399 156:201 157:355 158:141 159:458 160:318
161:207 162:333 163:166 164:512 165:396 166:539
167:434 168:748 169:151 170:840 171:83 172:1
173:1655 174:636 175:398 176:156 177:251 178:1012
180:1015 181:25 182:607 183:243 184:343 185:1
186:1396 187:689 188:936 189:877 190:5129 192:5951
193:5008 194:3543 195:3075 196:1244 197:143 198:3597
199:4091 200:5504 201:1514 202:8433 203:8485 204:4250
205:2341 206:2736 207:2840 208:4144 209:3517 210:2702
211:1466 212:2130 213:1769 214:776 215:76 216:4898
217:1620 218:556 219:349 220:1224 221:515 222:352
223:249
End of report
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