Routing Table Report 00:00 GMT Wed 29 Dec, 2010
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: 344870
Prefixes after maximum aggregation: 155257
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 167530
Total ASes present in the Internet Routing Table: 35573
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30618
Origin ASes announcing only one prefix: 14905
Transit ASes present in the Internet Routing Table: 4955
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 405
Unregistered ASNs in the Routing Table: 157
Number of 32-bit ASNs allocated by the RIRs: 978
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 72
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 2393515722
Equivalent to 142 /8s, 170 /16s and 38 /24s
Percentage of available address space announced: 64.6
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.9
Total number of prefixes smaller than registry allocations: 142114
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82201
Total APNIC prefixes after maximum aggregation: 27811
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 79216
Unique aggregates announced from the APNIC address blocks: 35235
APNIC Region origin ASes present in the Internet Routing Table: 4274
APNIC Prefixes per ASN: 18.53
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575976898
Equivalent to 34 /8s, 84 /16s and 181 /24s
Percentage of available APNIC address space announced: 78.0
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: 140063
Total ARIN prefixes after maximum aggregation: 72289
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111152
Unique aggregates announced from the ARIN address blocks: 43996
ARIN Region origin ASes present in the Internet Routing Table: 14106
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1450
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 761070985
Equivalent to 45 /8s, 93 /16s and 5 /24s
Percentage of available ARIN address space announced: 63.9
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: 83724
Total RIPE prefixes after maximum aggregation: 45930
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 76240
Unique aggregates announced from the RIPE address blocks: 47561
RIPE Region origin ASes present in the Internet Routing Table: 15182
RIPE Prefixes per ASN: 5.02
RIPE Region origin ASes announcing only one prefix: 7714
RIPE Region transit ASes present in the Internet Routing Table: 2410
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 452772053
Equivalent to 26 /8s, 252 /16s and 192 /24s
Percentage of available RIPE address space announced: 75.0
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, 196608-197631
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: 31231
Total LACNIC prefixes after maximum aggregation: 7169
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 29996
Unique aggregates announced from the LACNIC address blocks: 15534
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78646284
Equivalent to 4 /8s, 176 /16s and 12 /24s
Percentage of available LACNIC address space announced: 58.6
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: 7388
Total AfriNIC prefixes after maximum aggregation: 1936
AfriNIC Deaggregation factor: 3.82
Prefixes being announced from the AfriNIC address blocks: 5668
Unique aggregates announced from the AfriNIC address blocks: 1782
AfriNIC Region origin ASes present in the Internet Routing Table: 430
AfriNIC Prefixes per ASN: 13.18
AfriNIC Region origin ASes announcing only one prefix: 142
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21587968
Equivalent to 1 /8s, 73 /16s and 104 /24s
Percentage of available AfriNIC address space announced: 42.9
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 1738 9486 520 Korea Telecom (KIX)
7545 1535 298 73 TPG Internet Pty Ltd
4755 1389 378 156 Videsh Sanchar Nigam Ltd. Aut
17974 1369 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1044 313 178 Bharti Airtel Ltd.
9583 1036 75 494 Sify Limited
17488 959 157 111 Hathway IP Over Cable Interne
18101 912 116 139 Reliance Infocom Ltd Internet
4808 911 1631 258 CNCGROUP IP network: China169
9829 824 696 31 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 3727 3855 268 bellsouth.net, inc.
4323 2642 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
20115 1558 1534 638 Charter Communications
6478 1439 290 76 AT&T Worldnet Services
7018 1365 5693 881 AT&T WorldNet Services
2386 1310 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1258 2864 75 Cox Communications, Inc.
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
286 945 711 151 KPNQwest Backbone AS
8560 748 86 9 Schlund + Partner AG
9116 520 328 32 Goldenlines main autonomous s
3292 503 2010 385 TDC Tele Danmark
6830 501 1763 307 UPC Distribution Services
34984 450 96 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
702 401 1867 315 UUNET - Commercial IP service
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
8151 1351 2591 364 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1222 933 78 Types of queries are: POCs, o
6503 1196 355 81 AVANTEL, S.A.
7303 836 442 110 Telecom Argentina Stet-France
14420 590 50 83 Types of queries are: POCs, o
22047 560 310 15 Types of queries are: POCs, o
3816 492 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 454 33 32 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 771 445 10 TEDATA
24863 746 147 39 LINKdotNET AS number
36992 657 283 153 Etisalat MISR
3741 262 986 224 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 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 3727 3855 268 bellsouth.net, inc.
4323 2642 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1738 9486 520 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1535 298 73 TPG Internet Pty Ltd
6478 1439 290 76 AT&T Worldnet Services
4755 1389 378 156 Videsh Sanchar Nigam Ltd. Aut
17974 1369 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 2642 2240 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1840 1553 Verizon Global Networks
7545 1535 1462 TPG Internet Pty Ltd
6478 1439 1363 AT&T Worldnet Services
17974 1369 1341 PT TELEKOMUNIKASI INDONESIA
4755 1389 1233 Videsh Sanchar Nigam Ltd. Aut
11492 1289 1220 Cable One
4766 1738 1218 Korea Telecom (KIX)
22773 1258 1183 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 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
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 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
37.0.0.0/8 237 Merit Network
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
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 /8:24 /9:10 /10:25 /11:71 /12:214
/13:430 /14:761 /15:1374 /16:11529 /17:5760 /18:9499
/19:19196 /20:24679 /21:24713 /22:32449 /23:31654 /24:179519
/25:362 /26:380 /27:196 /28:378 /29:316 /30:671
/31:40 /32:620
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2302 3727 bellsouth.net, inc.
4323 1427 2642 Time Warner Telecom
6478 1395 1439 AT&T Worldnet Services
11492 1244 1289 Cable One
10620 1236 1344 TVCABLE BOGOTA
18566 1076 1095 Covad Communications
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
6503 979 1196 AVANTEL, S.A.
19262 956 1840 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:152 2:34 4:17 5:1 8:325 12:2035
13:5 14:103 15:15 16:3 17:8 20:9
24:1484 27:498 32:144 33:5 34:2 36:1
37:1 38:686 40:101 41:2286 42:1 44:3
46:453 47:5 49:106 50:34 52:12 55:5
56:2 57:41 58:867 59:500 60:392 61:1104
62:1052 63:1944 64:3734 65:2326 66:4111 67:1790
68:1140 69:2949 70:753 71:390 72:1997 73:3
74:2481 75:301 76:328 77:859 78:701 79:459
80:1042 81:802 82:617 83:455 84:651 85:1058
86:519 87:893 88:353 89:1601 90:142 91:3382
92:484 93:1036 94:1148 95:741 96:410 97:247
98:734 99:33 101:17 107:3 108:79 109:845
110:452 111:675 112:306 113:338 114:486 115:642
116:884 117:662 118:620 119:1024 120:197 121:720
122:1565 123:1026 124:1248 125:1213 128:232 129:155
130:172 131:564 132:111 133:20 134:209 135:50
136:211 137:149 138:291 139:125 140:477 141:197
142:353 143:363 144:483 145:53 146:425 147:194
148:613 149:327 150:153 151:230 152:297 153:172
154:3 155:370 156:165 157:341 158:126 159:369
160:316 161:199 162:277 163:164 164:442 165:354
166:470 167:417 168:719 169:153 170:726 171:67
172:2 173:1181 174:482 175:281 176:1 177:2
178:703 180:742 182:422 183:246 184:215 186:868
187:767 188:900 189:1039 190:4291 192:5814 193:4832
194:3534 195:3044 196:1219 197:1 198:3556 199:3700
200:5586 201:1574 202:8393 203:8387 204:4058 205:2342
206:2583 207:2965 208:3874 209:3488 210:2578 211:1340
212:1986 213:1786 214:736 215:62 216:4810 217:1756
218:532 219:378 220:1187 221:446 222:329 223:89
End of report
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