Routing Table Report 00:00 GMT Mon 27 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: 345300
Prefixes after maximum aggregation: 155172
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 167244
Total ASes present in the Internet Routing Table: 35572
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 30627
Origin ASes announcing only one prefix: 14900
Transit ASes present in the Internet Routing Table: 4945
Transit-only ASes present in the Internet Routing Table: 117
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: 407
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: 203
Number of addresses announced to Internet: 2393241866
Equivalent to 142 /8s, 165 /16s and 249 /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: 142159
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82602
Total APNIC prefixes after maximum aggregation: 27781
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79616
Unique aggregates announced from the APNIC address blocks: 35184
APNIC Region origin ASes present in the Internet Routing Table: 4273
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 686
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 575979970
Equivalent to 34 /8s, 84 /16s and 193 /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: 139995
Total ARIN prefixes after maximum aggregation: 72238
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111125
Unique aggregates announced from the ARIN address blocks: 43988
ARIN Region origin ASes present in the Internet Routing Table: 14103
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5391
ARIN Region transit ASes present in the Internet Routing Table: 1449
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 761067913
Equivalent to 45 /8s, 92 /16s and 249 /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: 83862
Total RIPE prefixes after maximum aggregation: 45897
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 76383
Unique aggregates announced from the RIPE address blocks: 47384
RIPE Region origin ASes present in the Internet Routing Table: 15174
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7701
RIPE Region transit ASes present in the Internet Routing Table: 2403
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 452848341
Equivalent to 26 /8s, 253 /16s and 234 /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: 31097
Total LACNIC prefixes after maximum aggregation: 7186
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29857
Unique aggregates announced from the LACNIC address blocks: 15512
LACNIC Region origin ASes present in the Internet Routing Table: 1407
LACNIC Prefixes per ASN: 21.22
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 245
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78629452
Equivalent to 4 /8s, 175 /16s and 202 /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: 7479
Total AfriNIC prefixes after maximum aggregation: 1948
AfriNIC Deaggregation factor: 3.84
Prefixes being announced from the AfriNIC address blocks: 5768
Unique aggregates announced from the AfriNIC address blocks: 1791
AfriNIC Region origin ASes present in the Internet Routing Table: 436
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 145
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 21680896
Equivalent to 1 /8s, 74 /16s and 211 /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 1744 9486 522 Korea Telecom (KIX)
7545 1536 298 74 TPG Internet Pty Ltd
4755 1438 393 148 Videsh Sanchar Nigam Ltd. Aut
17974 1353 459 28 PT TELEKOMUNIKASI INDONESIA
24560 1045 313 177 Bharti Airtel Ltd.
9583 1036 75 494 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
18101 910 116 139 Reliance Infocom Ltd Internet
4808 907 1633 256 CNCGROUP IP network: China169
17908 827 176 60 Tata Communications
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 2643 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 1440 291 66 AT&T Worldnet Services
7018 1367 5693 882 AT&T WorldNet Services
2386 1310 569 931 AT&T Data Communications Serv
11492 1289 234 69 Cable One
22773 1259 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 521 328 33 Goldenlines main autonomous s
3292 506 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
9121 439 1690 29 TTnet Autonomous System
9198 421 202 13 Kazakhtelecom Corporate Sales
8551 404 355 38 Bezeq International
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 1353 2591 369 Uninet S.A. de C.V.
10620 1344 250 164 TVCABLE BOGOTA
28573 1227 933 78 Types of queries are: POCs, o
6503 1195 355 81 AVANTEL, S.A.
7303 839 442 111 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 493 216 98 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 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 816 445 10 TEDATA
24863 750 147 40 LINKdotNET AS number
36992 664 283 156 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 163 440 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 2643 1093 402 Time Warner Telecom
19262 1840 4921 287 Verizon Global Networks
1785 1789 697 133 AppliedTheory Corporation
4766 1744 9486 522 Korea Telecom (KIX)
20115 1558 1534 638 Charter Communications
7545 1536 298 74 TPG Internet Pty Ltd
6478 1440 291 66 AT&T Worldnet Services
4755 1438 393 148 Videsh Sanchar Nigam Ltd. Aut
7018 1367 5693 882 AT&T WorldNet Services
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 2643 2241 Time Warner Telecom
1785 1789 1656 AppliedTheory Corporation
19262 1840 1553 Verizon Global Networks
7545 1536 1462 TPG Internet Pty Ltd
6478 1440 1374 AT&T Worldnet Services
17974 1353 1325 PT TELEKOMUNIKASI INDONESIA
4755 1438 1290 Videsh Sanchar Nigam Ltd. Aut
4766 1744 1222 Korea Telecom (KIX)
11492 1289 1220 Cable One
22773 1259 1184 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
/13:431 /14:760 /15:1373 /16:11532 /17:5764 /18:9513
/19:19209 /20:24678 /21:24687 /22:32472 /23:31684 /24:179913
/25:359 /26:354 /27:201 /28:391 /29:318 /30:668
/31:40 /32:609
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2302 3727 bellsouth.net, inc.
4323 1428 2643 Time Warner Telecom
6478 1396 1440 AT&T Worldnet Services
11492 1244 1289 Cable One
10620 1236 1344 TVCABLE BOGOTA
7011 1071 1174 Citizens Utilities
1785 1062 1789 AppliedTheory Corporation
18566 1047 1066 Covad Communications
6503 978 1195 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)
----------------------------------------------
1:150 2:27 4:17 5:1 8:325 12:2041
13:5 14:99 15:15 16:3 17:8 20:9
24:1486 27:494 32:144 33:5 34:2 36:1
37:1 38:685 40:101 41:2341 42:1 44:3
46:440 47:5 49:106 50:33 52:12 55:3
56:2 57:41 58:862 59:535 60:392 61:1176
62:1071 63:1947 64:3733 65:2324 66:4100 67:1789
68:1147 69:2950 70:754 71:391 72:1997 73:3
74:2479 75:300 76:328 77:858 78:747 79:451
80:1065 81:801 82:616 83:453 84:653 85:1076
86:519 87:893 88:413 89:1613 90:142 91:3382
92:480 93:1031 94:1148 95:723 96:411 97:247
98:725 99:33 101:15 107:2 108:79 109:846
110:446 111:669 112:307 113:337 114:487 115:710
116:896 117:656 118:620 119:1023 120:198 121:838
122:1576 123:1029 124:1249 125:1210 128:232 129:155
130:172 131:561 132:111 133:20 134:209 135:50
136:212 137:149 138:291 139:126 140:479 141:197
142:353 143:359 144:474 145:53 146:424 147:193
148:613 149:325 150:152 151:230 152:297 153:172
154:3 155:371 156:165 157:341 158:126 159:369
160:316 161:198 162:277 163:164 164:458 165:353
166:472 167:416 168:715 169:154 170:726 171:67
172:2 173:1177 174:481 175:286 176:1 177:2
178:695 180:742 182:422 183:246 184:214 186:856
187:766 188:899 189:1036 190:4269 192:5808 193:4822
194:3529 195:3048 196:1205 197:1 198:3556 199:3702
200:5567 201:1575 202:8401 203:8385 204:4062 205:2343
206:2582 207:2966 208:3877 209:3486 210:2594 211:1340
212:1987 213:1786 214:720 215:62 216:4808 217:1765
218:529 219:405 220:1186 221:447 222:330 223:88
End of report
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