Routing Table Report 00:00 GMT Wed 04 Apr, 2012
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: 407608
Prefixes after maximum aggregation: 173203
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196093
Total ASes present in the Internet Routing Table: 40606
Prefixes per ASN: 10.04
Origin-only ASes present in the Internet Routing Table: 32960
Origin ASes announcing only one prefix: 15504
Transit ASes present in the Internet Routing Table: 5467
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5987
Unregistered ASNs in the Routing Table: 306
Number of 32-bit ASNs allocated by the RIRs: 2342
Number of 32-bit ASNs visible in the Routing Table: 2179
Prefixes from 32-bit ASNs in the Routing Table: 5362
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1337
Number of addresses announced to Internet: 2532848981
Equivalent to 150 /8s, 248 /16s and 53 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 171785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96883
Total APNIC prefixes after maximum aggregation: 31068
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 93369
Unique aggregates announced from the APNIC address blocks: 39234
APNIC Region origin ASes present in the Internet Routing Table: 4655
APNIC Prefixes per ASN: 20.06
APNIC Region origin ASes announcing only one prefix: 1246
APNIC Region transit ASes present in the Internet Routing Table: 743
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 170
Number of APNIC addresses announced to Internet: 642481920
Equivalent to 38 /8s, 75 /16s and 127 /24s
Percentage of available APNIC address space announced: 81.5
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: 152088
Total ARIN prefixes after maximum aggregation: 78052
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123239
Unique aggregates announced from the ARIN address blocks: 49968
ARIN Region origin ASes present in the Internet Routing Table: 14974
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5705
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 805385728
Equivalent to 48 /8s, 1 /16s and 54 /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: 102995
Total RIPE prefixes after maximum aggregation: 53475
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93369
Unique aggregates announced from the RIPE address blocks: 57289
RIPE Region origin ASes present in the Internet Routing Table: 16361
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7952
RIPE Region transit ASes present in the Internet Routing Table: 2643
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1477
Number of RIPE addresses announced to Internet: 502301580
Equivalent to 29 /8s, 240 /16s and 131 /24s
Percentage of available RIPE address space announced: 80.9
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: 40882
Total LACNIC prefixes after maximum aggregation: 8203
LACNIC Deaggregation factor: 4.98
Prefixes being announced from the LACNIC address blocks: 40372
Unique aggregates announced from the LACNIC address blocks: 19731
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 25.68
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 510
Number of LACNIC addresses announced to Internet: 98889736
Equivalent to 5 /8s, 228 /16s and 240 /24s
Percentage of available LACNIC address space announced: 65.5
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: 8934
Total AfriNIC prefixes after maximum aggregation: 2140
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6989
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31514368
Equivalent to 1 /8s, 224 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1927 11101 677 Korea Telecom (KIX)
17974 1790 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1655 301 89 TPG Internet Pty Ltd
4755 1574 386 158 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1167 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 951 131 160 Reliance Infocom Ltd Internet
9498 932 260 66 BHARTI Airtel Ltd.
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 3432 3807 196 bellsouth.net, inc.
7029 3374 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
1785 1887 680 128 AppliedTheory Corporation
20115 1637 1561 619 Charter Communications
4323 1586 1074 375 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1453 264 746 Mediacom Communications Corp
7018 1278 13742 829 AT&T WorldNet Services
11492 1185 216 365 Cable One
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
8402 1815 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
286 1066 853 198 KPNQwest Backbone AS
31148 677 37 9 FreeNet ISP
34984 674 188 174 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 638 206 499 Akamai Technologies European
8551 600 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1795 327 163 TVCABLE BOGOTA
28573 1749 1105 61 Types of queries are: POCs, o
8151 1516 2999 326 Uninet S.A. de C.V.
6503 1510 418 66 AVANTEL, S.A.
7303 1353 827 189 Telecom Argentina Stet-France
26615 903 700 28 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 636 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 570 242 101 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
8452 1291 958 13 TEDATA
24863 849 274 35 LINKdotNET AS number
6713 493 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 YEBO-AS
33776 182 11 21 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 15 16 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 3432 3807 196 bellsouth.net, inc.
7029 3374 990 155 Windstream Communications Inc
18566 2092 383 179 Covad Communications
4766 1927 11101 677 Korea Telecom (KIX)
1785 1887 680 128 AppliedTheory Corporation
8402 1815 544 16 Corbina telecom
10620 1795 327 163 TVCABLE BOGOTA
17974 1790 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1749 1105 61 Types of queries are: POCs, o
7545 1655 301 89 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3374 3219 Windstream Communications Inc
18566 2092 1913 Covad Communications
8402 1815 1799 Corbina telecom
1785 1887 1759 AppliedTheory Corporation
17974 1790 1727 PT TELEKOMUNIKASI INDONESIA
28573 1749 1688 Types of queries are: POCs, o
10620 1795 1632 TVCABLE BOGOTA
7545 1655 1566 TPG Internet Pty Ltd
6503 1510 1444 AVANTEL, S.A.
22773 1552 1441 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
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54439 UNALLOCATED 8.25.174.0/24 17378 DBS International
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
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
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 12.45.103.0/24 209 Qwest
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /8:19 /9:12 /10:28 /11:81 /12:235
/13:457 /14:838 /15:1516 /16:12330 /17:6545 /18:10875
/19:21132 /20:29929 /21:30167 /22:40746 /23:38038 /24:213054
/25:69 /26:76 /27:107 /28:273 /29:99 /30:500
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3036 3374 Windstream Communications Inc
6389 2149 3432 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1792 1815 Corbina telecom
10620 1690 1795 TVCABLE BOGOTA
30036 1394 1453 Mediacom Communications Corp
6503 1272 1510 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1100 1291 TEDATA
1785 1064 1887 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:537 2:755 4:18 6:3 8:396 12:1993
13:1 14:610 15:12 16:3 17:7 20:8
23:161 24:1768 27:1262 31:989 32:120 33:2
34:2 36:8 37:326 38:791 39:4 40:120
41:3084 42:133 44:3 46:1470 47:3 49:351
50:538 52:13 54:7 55:8 56:3 57:39
58:966 59:494 60:279 61:1213 62:989 63:2010
64:4196 65:2262 66:4520 67:2055 68:1335 69:3289
70:955 71:466 72:1846 73:1 74:2640 75:505
76:326 77:968 78:1010 79:506 80:1214 81:902
82:678 83:551 84:525 85:1198 86:413 87:911
88:346 89:1638 90:297 91:4689 92:521 93:1413
94:1489 95:1169 96:381 97:318 98:880 99:37
100:6 101:171 103:932 106:66 107:180 108:223
109:1267 110:763 111:904 112:447 113:589 114:632
115:778 116:914 117:721 118:918 119:1213 120:337
121:719 122:1669 123:1107 124:1372 125:1265 128:560
129:195 130:258 131:597 132:173 133:21 134:245
135:63 136:212 137:177 138:353 139:157 140:494
141:244 142:387 143:400 144:512 145:66 146:485
147:254 148:797 149:298 150:156 151:176 152:462
153:171 154:7 155:445 156:215 157:376 158:175
159:520 160:337 161:254 162:343 163:189 164:572
165:407 166:562 167:464 168:817 169:148 170:845
171:126 172:4 173:1751 174:579 175:444 176:459
177:629 178:1315 180:1232 181:73 182:781 183:284
184:453 185:1 186:2159 187:1030 188:1190 189:1782
190:5446 192:6034 193:5630 194:4640 195:3635 196:1292
197:124 198:3637 199:4495 200:5815 201:1908 202:8472
203:8619 204:4350 205:2476 206:2779 207:2822 208:4072
209:3614 210:2785 211:1482 212:2040 213:1915 214:883
215:108 216:5092 217:1527 218:543 219:337 220:1238
221:556 222:333 223:332
End of report
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