Routing Table Report 00:00 GMT Wed 23 Mar, 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: 355274
Prefixes after maximum aggregation: 160495
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 173413
Total ASes present in the Internet Routing Table: 37051
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31285
Origin ASes announcing only one prefix: 14947
Transit ASes present in the Internet Routing Table: 4849
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2488
Unregistered ASNs in the Routing Table: 230
Number of 32-bit ASNs allocated by the RIRs: 1213
Number of 32-bit ASNs visible in the Routing Table: 917
Prefixes from 32-bit ASNs in the Routing Table: 1985
Special use prefixes present in the Routing Table: 74
Prefixes being announced from unallocated address space: 209
Number of addresses announced to Internet: 2389952715
Equivalent to 142 /8s, 115 /16s and 200 /24s
Percentage of available address space announced: 64.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.6
Total number of prefixes smaller than registry allocations: 146640
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85791
Total APNIC prefixes after maximum aggregation: 28696
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 82774
Unique aggregates announced from the APNIC address blocks: 36572
APNIC Region origin ASes present in the Internet Routing Table: 4345
APNIC Prefixes per ASN: 19.05
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 668
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 600026561
Equivalent to 35 /8s, 195 /16s and 173 /24s
Percentage of available APNIC address space announced: 76.1
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, 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: 141420
Total ARIN prefixes after maximum aggregation: 72771
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113607
Unique aggregates announced from the ARIN address blocks: 45071
ARIN Region origin ASes present in the Internet Routing Table: 14284
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5416
ARIN Region transit ASes present in the Internet Routing Table: 1422
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 10
Number of ARIN addresses announced to Internet: 797110296
Equivalent to 47 /8s, 130 /16s and 240 /24s
Percentage of available ARIN address space announced: 63.3
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: 86078
Total RIPE prefixes after maximum aggregation: 47597
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 78588
Unique aggregates announced from the RIPE address blocks: 49834
RIPE Region origin ASes present in the Internet Routing Table: 15470
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7744
RIPE Region transit ASes present in the Internet Routing Table: 2360
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 680
Number of RIPE addresses announced to Internet: 465034444
Equivalent to 27 /8s, 183 /16s and 220 /24s
Percentage of available RIPE address space announced: 74.9
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: 32299
Total LACNIC prefixes after maximum aggregation: 7369
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31225
Unique aggregates announced from the LACNIC address blocks: 16176
LACNIC Region origin ASes present in the Internet Routing Table: 1436
LACNIC Prefixes per ASN: 21.74
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 258
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 177
Number of LACNIC addresses announced to Internet: 81461388
Equivalent to 4 /8s, 219 /16s and 0 /24s
Percentage of available LACNIC address space announced: 53.9
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: 7459
Total AfriNIC prefixes after maximum aggregation: 1798
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 5861
Unique aggregates announced from the AfriNIC address blocks: 1799
AfriNIC Region origin ASes present in the Internet Routing Table: 434
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 22662912
Equivalent to 1 /8s, 89 /16s and 207 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1867 9500 591 Korea Telecom (KIX)
7545 1549 301 84 TPG Internet Pty Ltd
4755 1484 653 160 Videsh Sanchar Nigam Ltd. Aut
17974 1446 472 35 PT TELEKOMUNIKASI INDONESIA
24560 1130 321 203 Bharti Airtel Ltd.
9583 1054 77 495 Sify Limited
9829 1004 868 53 BSNL National Internet Backbo
17488 951 162 96 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet
4808 921 1999 267 CNCGROUP IP network: China169
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 3674 3838 258 bellsouth.net, inc.
4323 2571 1109 404 Time Warner Telecom
1785 1794 681 131 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1578 1540 645 Charter Communications
6478 1561 301 34 AT&T Worldnet Services
19262 1487 4919 303 Verizon Global Networks
7018 1359 6707 887 AT&T WorldNet Services
11492 1319 237 58 Cable One
22773 1287 2865 80 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 1005 795 166 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 516 1780 318 UPC Distribution Services
3292 510 2013 392 TDC Tele Danmark
9198 472 267 15 Kazakhtelecom Corporate Sales
34984 455 95 205 Tellcom Iletisim Hizmetleri
8866 444 133 24 Bulgarian Telecommunication C
8402 423 320 32 Corbina telecom
20940 419 100 322 Akamai Technologies European
3320 408 7604 355 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 1394 260 159 TVCABLE BOGOTA
28573 1250 969 83 Types of queries are: POCs, o
8151 1239 2668 371 Uninet S.A. de C.V.
6503 1177 354 74 AVANTEL, S.A.
7303 924 465 147 Telecom Argentina Stet-France
14420 638 52 91 Types of queries are: POCs, o
22047 545 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
13489 494 213 104 Orbitel S.A. E.S.P.
11172 487 99 81 Alestra
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 797 445 11 TEDATA
24863 726 146 37 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 298 271 14 Etisalat MISR
3741 265 985 227 The Internet Solution
24835 232 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 213 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 152 441 87 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 3674 3838 258 bellsouth.net, inc.
4323 2571 1109 404 Time Warner Telecom
23456 1985 485 1083 >>UNKNOWN<<
4766 1867 9500 591 Korea Telecom (KIX)
1785 1794 681 131 AppliedTheory Corporation
18566 1607 331 195 Covad Communications
20115 1578 1540 645 Charter Communications
6478 1561 301 34 AT&T Worldnet Services
7545 1549 301 84 TPG Internet Pty Ltd
19262 1487 4919 303 Verizon Global Networks
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 2571 2167 Time Warner Telecom
1785 1794 1663 AppliedTheory Corporation
6478 1561 1527 AT&T Worldnet Services
7545 1549 1465 TPG Internet Pty Ltd
18566 1607 1412 Covad Communications
17974 1446 1411 PT TELEKOMUNIKASI INDONESIA
4755 1484 1324 Videsh Sanchar Nigam Ltd. Aut
4766 1867 1276 Korea Telecom (KIX)
11492 1319 1261 Cable One
10620 1394 1235 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
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
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
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.31.208.0/21 9188 infoServe GmbH
31.47.0.0/20 25144 Telekom Srpske
31.47.16.0/22 25144 Telekom Srpske
31.47.96.0/20 8251 Sdruzeni Klfree.net
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 /9:11 /10:26 /11:75 /12:218
/13:448 /14:771 /15:1399 /16:11683 /17:5925 /18:9712
/19:19564 /20:25424 /21:25576 /22:33990 /23:32598 /24:185228
/25:366 /26:340 /27:190 /28:178 /29:188 /30:662
/31:54 /32:628
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2267 3674 bellsouth.net, inc.
18566 1586 1607 Covad Communications
6478 1515 1561 AT&T Worldnet Services
4323 1380 2571 Time Warner Telecom
10620 1285 1394 TVCABLE BOGOTA
11492 1274 1319 Cable One
23456 1084 1985 >>UNKNOWN<<
7011 1062 1163 Citizens Utilities
1785 1056 1794 AppliedTheory Corporation
6503 956 1177 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:77 4:18 5:1 8:345 12:2028
13:1 14:426 15:15 16:3 17:8 20:9
23:3 24:1585 27:685 31:6 32:127 33:3
34:2 37:1 38:749 39:1 40:101 41:2262
44:3 46:744 47:4 49:165 50:115 52:13
55:3 56:2 57:43 58:871 59:497 60:386
61:1165 62:1031 63:1927 64:3899 65:2358 66:4385
67:1810 68:1257 69:3003 70:744 71:365 72:1928
73:3 74:2379 75:298 76:352 77:855 78:700
79:466 80:1098 81:828 82:525 83:477 84:660
85:1054 86:531 87:795 88:359 89:1591 90:174
91:3652 92:508 93:1053 94:1253 95:804 96:448
97:252 98:816 99:34 101:49 106:1 107:4
108:72 109:926 110:515 111:704 112:325 113:379
114:506 115:708 116:980 117:674 118:725 119:1091
120:277 121:768 122:1613 123:1046 124:1341 125:1248
128:266 129:173 130:172 131:564 132:100 133:20
134:216 135:49 136:205 137:146 138:299 139:127
140:484 141:173 142:380 143:388 144:478 145:52
146:441 147:203 148:617 149:262 150:161 151:186
152:298 153:180 154:3 155:381 156:184 157:347
158:130 159:372 160:313 161:206 162:278 163:165
164:494 165:368 166:499 167:414 168:721 169:159
170:781 171:69 172:2 173:1269 174:527 175:335
177:52 178:826 180:790 181:4 182:402 183:242
184:309 185:1 186:1105 187:881 188:920 189:1019
190:4728 192:5797 193:4810 194:3547 195:3087 196:1196
197:15 198:3581 199:3889 200:5535 201:1588 202:8547
203:8496 204:4121 205:2319 206:2661 207:3029 208:3922
209:3492 210:2702 211:1361 212:2005 213:1764 214:757
215:66 216:4900 217:1659 218:559 219:383 220:1202
221:480 222:346 223:100
End of report
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