Routing Table Report 00:00 GMT Wed 26 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: 348614
Prefixes after maximum aggregation: 156331
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 169492
Total ASes present in the Internet Routing Table: 35747
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 30802
Origin ASes announcing only one prefix: 14908
Transit ASes present in the Internet Routing Table: 4945
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 405
Unregistered ASNs in the Routing Table: 156
Number of 32-bit ASNs allocated by the RIRs: 1037
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 218
Number of addresses announced to Internet: 2348665203
Equivalent to 139 /8s, 253 /16s and 201 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 87.9
Total number of prefixes smaller than registry allocations: 143473
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83840
Total APNIC prefixes after maximum aggregation: 28009
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80749
Unique aggregates announced from the APNIC address blocks: 35535
APNIC Region origin ASes present in the Internet Routing Table: 4296
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 583626690
Equivalent to 34 /8s, 201 /16s and 111 /24s
Percentage of available APNIC address space announced: 79.1
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: 141251
Total ARIN prefixes after maximum aggregation: 72712
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111728
Unique aggregates announced from the ARIN address blocks: 44325
ARIN Region origin ASes present in the Internet Routing Table: 14151
ARIN Prefixes per ASN: 7.90
ARIN Region origin ASes announcing only one prefix: 5376
ARIN Region transit ASes present in the Internet Routing Table: 1467
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 750454921
Equivalent to 44 /8s, 187 /16s and 8 /24s
Percentage of available ARIN address space announced: 63.0
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, 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: 84308
Total RIPE prefixes after maximum aggregation: 46429
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 76879
Unique aggregates announced from the RIPE address blocks: 48219
RIPE Region origin ASes present in the Internet Routing Table: 15276
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7744
RIPE Region transit ASes present in the Internet Routing Table: 2393
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 457036041
Equivalent to 27 /8s, 61 /16s and 209 /24s
Percentage of available RIPE address space announced: 75.7
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: 31456
Total LACNIC prefixes after maximum aggregation: 7220
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 30360
Unique aggregates announced from the LACNIC address blocks: 15810
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.38
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 79933824
Equivalent to 4 /8s, 195 /16s and 177 /24s
Percentage of available LACNIC address space announced: 59.6
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: 7495
Total AfriNIC prefixes after maximum aggregation: 1840
AfriNIC Deaggregation factor: 4.07
Prefixes being announced from the AfriNIC address blocks: 5852
Unique aggregates announced from the AfriNIC address blocks: 1784
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 21659392
Equivalent to 1 /8s, 74 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 43.0
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 1759 9484 515 Korea Telecom (KIX)
7545 1576 300 82 TPG Internet Pty Ltd
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1387 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1095 317 181 Bharti Airtel Ltd.
9583 1043 76 486 Sify Limited
17488 964 162 103 Hathway IP Over Cable Interne
18101 919 116 140 Reliance Infocom Ltd Internet
4808 911 1969 259 CNCGROUP IP network: China169
9829 858 729 52 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 3710 3855 266 bellsouth.net, inc.
4323 2640 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1793 698 133 AppliedTheory Corporation
20115 1577 1534 639 Charter Communications
6478 1472 291 79 AT&T Worldnet Services
7018 1368 6682 884 AT&T WorldNet Services
2386 1297 553 933 AT&T Data Communications Serv
22773 1274 2864 77 Cox Communications, Inc.
11492 1270 235 71 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 522 328 32 Goldenlines main autonomous s
3292 503 2010 387 TDC Tele Danmark
6830 503 1763 308 UPC Distribution Services
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 439 133 23 Bulgarian Telecommunication C
12479 408 577 6 Uni2 Autonomous System
8551 404 355 38 Bezeq International
3320 402 7618 351 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 1357 252 165 TVCABLE BOGOTA
8151 1333 2620 365 Uninet S.A. de C.V.
28573 1249 959 82 Types of queries are: POCs, o
6503 1150 355 78 AVANTEL, S.A.
7303 863 460 103 Telecom Argentina Stet-France
14420 612 54 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 511 220 100 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 459 53 48 Telconet 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 778 445 11 TEDATA
24863 756 147 40 LINKdotNET AS number
36992 676 361 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 216 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
2018 167 277 64 TENET-1
16637 165 440 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 3710 3855 266 bellsouth.net, inc.
4323 2640 1093 404 Time Warner Telecom
19262 1839 4927 283 Verizon Global Networks
1785 1793 698 133 AppliedTheory Corporation
4766 1759 9484 515 Korea Telecom (KIX)
20115 1577 1534 639 Charter Communications
7545 1576 300 82 TPG Internet Pty Ltd
6478 1472 291 79 AT&T Worldnet Services
4755 1401 632 159 Videsh Sanchar Nigam Ltd. Aut
17974 1387 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 2640 2236 Time Warner Telecom
1785 1793 1660 AppliedTheory Corporation
19262 1839 1556 Verizon Global Networks
7545 1576 1494 TPG Internet Pty Ltd
6478 1472 1393 AT&T Worldnet Services
17974 1387 1359 PT TELEKOMUNIKASI INDONESIA
4766 1759 1244 Korea Telecom (KIX)
4755 1401 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1270 1199 Cable One
22773 1274 1197 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
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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 /8:19 /9:10 /10:26 /11:71 /12:216
/13:439 /14:768 /15:1385 /16:11594 /17:5839 /18:9595
/19:19421 /20:24878 /21:24993 /22:32933 /23:32084 /24:181434
/25:330 /26:357 /27:184 /28:359 /29:297 /30:690
/31:47 /32:645
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2289 3710 bellsouth.net, inc.
4323 1426 2640 Time Warner Telecom
6478 1426 1472 AT&T Worldnet Services
10620 1248 1357 TVCABLE BOGOTA
11492 1226 1270 Cable One
18566 1120 1139 Covad Communications
7011 1068 1174 Citizens Utilities
1785 1061 1793 AppliedTheory Corporation
19262 953 1839 Verizon Global Networks
6503 936 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:166 2:48 4:17 5:1 8:333 12:2037
13:1 14:378 15:15 16:3 17:8 20:9
23:1 24:1485 27:543 32:121 33:5 34:2
36:1 37:1 38:694 40:101 41:2309 42:1
44:3 46:519 47:5 49:142 50:56 52:12
55:6 56:2 57:41 58:870 59:485 60:391
61:1136 62:1040 63:1929 64:3784 65:2336 66:4097
67:1788 68:1152 69:2984 70:758 71:397 72:2039
73:3 74:2352 75:304 76:338 77:862 78:713
79:446 80:1051 81:800 82:542 83:469 84:661
85:1071 86:534 87:758 88:358 89:1602 90:157
91:3445 92:493 93:1057 94:1194 95:786 96:413
97:248 98:761 99:33 101:25 107:3 108:80
109:869 110:468 111:693 112:303 113:358 114:493
115:633 116:900 117:677 118:637 119:1018 120:243
121:712 122:1596 123:1045 124:1290 125:1214 128:248
129:159 130:174 131:569 132:110 133:20 134:220
135:49 136:216 137:146 138:294 139:128 140:486
141:198 142:365 143:384 144:488 145:51 146:425
147:206 148:626 149:273 150:154 151:231 152:303
153:175 154:3 155:346 156:173 157:313 158:126
159:377 160:314 161:203 162:277 163:156 164:470
165:353 166:600 167:422 168:748 169:154 170:741
171:68 172:2 173:1259 174:518 175:309 176:1
177:4 178:757 180:764 182:402 183:251 184:239
186:958 187:791 188:910 189:1039 190:4374 192:5820
193:4827 194:3553 195:3092 196:1239 197:2 198:3567
199:3757 200:5614 201:1575 202:8458 203:8439 204:4089
205:2341 206:2597 207:2971 208:3890 209:3479 210:2647
211:1335 212:1931 213:1772 214:756 215:62 216:4866
217:1640 218:547 219:375 220:1202 221:448 222:371
223:92
End of report
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