Routing Table Report 00:00 GMT Mon 24 Jan, 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: 348348
Prefixes after maximum aggregation: 156346
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169295
Total ASes present in the Internet Routing Table: 35710
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 30785
Origin ASes announcing only one prefix: 14891
Transit ASes present in the Internet Routing Table: 4925
Transit-only ASes present in the Internet Routing Table: 111
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (47645) 19
Prefixes from unregistered ASNs in the Routing Table: 412
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1037
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 215
Number of addresses announced to Internet: 2342156720
Equivalent to 139 /8s, 154 /16s and 121 /24s
Percentage of available address space announced: 63.2
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.8
Total number of prefixes smaller than registry allocations: 143331
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83796
Total APNIC prefixes after maximum aggregation: 28018
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80719
Unique aggregates announced from the APNIC address blocks: 35500
APNIC Region origin ASes present in the Internet Routing Table: 4291
APNIC Prefixes per ASN: 18.81
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 582347491
Equivalent to 34 /8s, 181 /16s and 234 /24s
Percentage of available APNIC address space announced: 78.9
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, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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: 141107
Total ARIN prefixes after maximum aggregation: 72669
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111649
Unique aggregates announced from the ARIN address blocks: 44316
ARIN Region origin ASes present in the Internet Routing Table: 14144
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5371
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 746192777
Equivalent to 44 /8s, 121 /16s and 255 /24s
Percentage of available ARIN address space announced: 62.6
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, 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, 100/8,
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: 84091
Total RIPE prefixes after maximum aggregation: 46356
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 76688
Unique aggregates announced from the RIPE address blocks: 48096
RIPE Region origin ASes present in the Internet Routing Table: 15250
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7727
RIPE Region transit ASes present in the Internet Routing Table: 2381
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 456322969
Equivalent to 27 /8s, 50 /16s and 239 /24s
Percentage of available RIPE address space announced: 75.6
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, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31570
Total LACNIC prefixes after maximum aggregation: 7216
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 30371
Unique aggregates announced from the LACNIC address blocks: 15753
LACNIC Region origin ASes present in the Internet Routing Table: 1418
LACNIC Prefixes per ASN: 21.42
LACNIC Region origin ASes announcing only one prefix: 433
LACNIC Region transit ASes present in the Internet Routing Table: 255
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 79588364
Equivalent to 4 /8s, 190 /16s and 108 /24s
Percentage of available LACNIC address space announced: 59.3
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: 7512
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 3.82
Prefixes being announced from the AfriNIC address blocks: 5821
Unique aggregates announced from the AfriNIC address blocks: 1833
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21713664
Equivalent to 1 /8s, 75 /16s and 83 /24s
Percentage of available AfriNIC address space announced: 43.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1757 9484 513 Korea Telecom (KIX)
7545 1574 300 81 TPG Internet Pty Ltd
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1380 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1075 81 511 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
4808 919 2002 264 CNCGROUP IP network: China169
18101 918 116 139 Reliance Infocom Ltd Internet
9829 863 729 48 BSNL National Internet Backbo
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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1838 4927 282 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
7018 1370 5659 884 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1275 2864 77 Cox Communications, Inc.
11492 1258 234 76 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
286 975 710 153 KPNQwest Backbone AS
9116 526 328 32 Goldenlines main autonomous s
3292 503 2010 387 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
9198 462 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
3320 401 7618 350 Deutsche Telekom AG
12479 401 577 6 Uni2 Autonomous System
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 1355 251 165 TVCABLE BOGOTA
8151 1333 2597 366 Uninet S.A. de C.V.
28573 1242 954 80 Types of queries are: POCs, o
6503 1150 355 79 AVANTEL, S.A.
7303 887 461 114 Telecom Argentina Stet-France
14420 604 50 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 527 222 103 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 455 33 33 Telefonica del Sur 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 756 445 11 TEDATA
24863 754 147 39 LINKdotNET AS number
36992 667 301 143 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 217 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 194 19 11 Ci Telecom Autonomous system
33776 191 12 13 Starcomms Nigeria Limited
2018 167 277 64 TENET-1
16637 163 425 89 Johnnic e-Ventures
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 3709 3855 266 bellsouth.net, inc.
4323 2648 1093 404 Time Warner Telecom
19262 1838 4927 282 Verizon Global Networks
1785 1790 697 133 AppliedTheory Corporation
4766 1757 9484 513 Korea Telecom (KIX)
7545 1574 300 81 TPG Internet Pty Ltd
20115 1571 1533 641 Charter Communications
6478 1467 290 91 AT&T Worldnet Services
4755 1398 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1380 459 28 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2648 2244 Time Warner Telecom
1785 1790 1657 AppliedTheory Corporation
19262 1838 1556 Verizon Global Networks
7545 1574 1493 TPG Internet Pty Ltd
6478 1467 1376 AT&T Worldnet Services
17974 1380 1352 PT TELEKOMUNIKASI INDONESIA
4766 1757 1244 Korea Telecom (KIX)
4755 1398 1240 Videsh Sanchar Nigam Ltd. Aut
22773 1275 1198 Cox Communications, Inc.
10620 1355 1190 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/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 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
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /9:10 /10:25 /11:71 /12:215
/13:438 /14:767 /15:1385 /16:11594 /17:5837 /18:9603
/19:19428 /20:24864 /21:24944 /22:32879 /23:32019 /24:181264
/25:362 /26:371 /27:199 /28:371 /29:295 /30:689
/31:46 /32:652
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
4323 1430 2648 Time Warner Telecom
6478 1421 1467 AT&T Worldnet Services
10620 1246 1355 TVCABLE BOGOTA
11492 1214 1258 Cable One
18566 1118 1137 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1790 AppliedTheory Corporation
19262 952 1838 Verizon Global Networks
6503 935 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:165 2:42 4:17 5:1 8:332 12:2031
13:6 14:377 15:15 16:3 17:8 20:8
23:1 24:1472 27:549 32:121 33:5 34:2
36:1 37:1 38:693 40:100 41:2306 42:1
44:3 46:516 47:5 49:145 50:56 52:12
55:6 56:2 57:41 58:868 59:485 60:391
61:1135 62:1036 63:1930 64:3777 65:2336 66:4101
67:1795 68:1152 69:2982 70:760 71:394 72:2038
73:3 74:2347 75:302 76:335 77:863 78:711
79:447 80:1048 81:824 82:541 83:465 84:661
85:1066 86:534 87:756 88:355 89:1585 90:155
91:3437 92:494 93:1060 94:1177 95:776 96:413
97:248 98:759 99:33 101:18 107:3 108:79
109:868 110:466 111:695 112:309 113:365 114:492
115:637 116:898 117:677 118:631 119:1036 120:240
121:710 122:1609 123:1046 124:1266 125:1212 128:248
129:159 130:171 131:568 132:109 133:20 134:219
135:50 136:216 137:145 138:293 139:136 140:485
141:198 142:362 143:379 144:488 145:52 146:415
147:205 148:625 149:273 150:150 151:230 152:303
153:175 154:3 155:346 156:173 157:342 158:125
159:377 160:313 161:200 162:276 163:159 164:469
165:353 166:602 167:421 168:745 169:154 170:747
171:69 172:2 173:1258 174:517 175:308 176:1
177:4 178:753 180:760 182:398 183:249 184:237
186:958 187:821 188:910 189:1033 190:4369 192:5819
193:4819 194:3548 195:3080 196:1254 197:2 198:3567
199:3760 200:5609 201:1578 202:8448 203:8437 204:4089
205:2343 206:2592 207:2974 208:3885 209:3467 210:2647
211:1336 212:1920 213:1761 214:750 215:62 216:4865
217:1638 218:550 219:375 220:1204 221:448 222:346
223:90
End of report
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