Routing Table Report 00:00 GMT Mon 12 Mar, 2012
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: 403538
Prefixes after maximum aggregation: 172064
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 194957
Total ASes present in the Internet Routing Table: 40366
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32823
Origin ASes announcing only one prefix: 15516
Transit ASes present in the Internet Routing Table: 5470
Transit-only ASes present in the Internet Routing Table: 154
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 27
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5455
Unregistered ASNs in the Routing Table: 204
Number of 32-bit ASNs allocated by the RIRs: 2313
Number of 32-bit ASNs visible in the Routing Table: 2073
Prefixes from 32-bit ASNs in the Routing Table: 4946
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 580
Number of addresses announced to Internet: 2525381335
Equivalent to 150 /8s, 134 /16s and 66 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 170093
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96409
Total APNIC prefixes after maximum aggregation: 30827
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92873
Unique aggregates announced from the APNIC address blocks: 39492
APNIC Region origin ASes present in the Internet Routing Table: 4652
APNIC Prefixes per ASN: 19.96
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 744
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 164
Number of APNIC addresses announced to Internet: 640856832
Equivalent to 38 /8s, 50 /16s and 179 /24s
Percentage of available APNIC address space announced: 81.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 151254
Total ARIN prefixes after maximum aggregation: 77794
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122636
Unique aggregates announced from the ARIN address blocks: 49855
ARIN Region origin ASes present in the Internet Routing Table: 14953
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5666
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805926658
Equivalent to 48 /8s, 9 /16s and 119 /24s
Percentage of available ARIN address space announced: 64.0
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, 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: 102257
Total RIPE prefixes after maximum aggregation: 53039
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 92940
Unique aggregates announced from the RIPE address blocks: 56951
RIPE Region origin ASes present in the Internet Routing Table: 16350
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2644
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1417
Number of RIPE addresses announced to Internet: 501719692
Equivalent to 29 /8s, 231 /16s and 162 /24s
Percentage of available RIPE address space announced: 80.8
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: 39532
Total LACNIC prefixes after maximum aggregation: 8167
LACNIC Deaggregation factor: 4.84
Prefixes being announced from the LACNIC address blocks: 39162
Unique aggregates announced from the LACNIC address blocks: 19702
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 24.90
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 292
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 473
Number of LACNIC addresses announced to Internet: 98131720
Equivalent to 5 /8s, 217 /16s and 95 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8786
Total AfriNIC prefixes after maximum aggregation: 2106
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6868
Unique aggregates announced from the AfriNIC address blocks: 2166
AfriNIC Region origin ASes present in the Internet Routing Table: 519
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 119
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 31555840
Equivalent to 1 /8s, 225 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1928 11102 679 Korea Telecom (KIX)
17974 1737 503 37 PT TELEKOMUNIKASI INDONESIA
7545 1643 303 87 TPG Internet Pty Ltd
4755 1566 386 159 Videsh Sanchar Nigam Ltd. Aut
9583 1198 90 510 Sify Limited
9829 1188 1001 30 BSNL National Internet Backbo
7552 1160 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd.
18101 948 130 155 Reliance Infocom Ltd Internet
4808 920 1875 266 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 3405 3807 198 bellsouth.net, inc.
7029 3405 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1876 680 127 AppliedTheory Corporation
20115 1635 1555 634 Charter Communications
4323 1562 1023 363 Time Warner Telecom
22773 1544 2910 111 Cox Communications, Inc.
30036 1421 259 760 Mediacom Communications Corp
7018 1271 10927 832 AT&T WorldNet Services
2386 1163 493 860 AT&T Data Communications Serv
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
8402 1850 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1087 2184 60 LDCOM NETWORKS
286 1075 854 202 KPNQwest Backbone AS
34984 659 188 171 Tellcom Iletisim Hizmetleri
12479 644 648 54 Uni2 Autonomous System
6830 641 1927 412 UPC Distribution Services
20940 624 202 486 Akamai Technologies European
8551 604 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1761 326 160 TVCABLE BOGOTA
28573 1686 1092 57 Types of queries are: POCs, o
8151 1520 2996 343 Uninet S.A. de C.V.
7303 1329 823 184 Telecom Argentina Stet-France
26615 899 672 33 Types of queries are: POCs, o
27947 677 68 110 Telconet S.A
11172 635 91 72 Alestra
22047 582 322 17 Types of queries are: POCs, o
6503 576 418 66 AVANTEL, S.A.
3816 558 240 93 COLOMBIA TELECOMUNICACIONES S
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 1254 958 13 TEDATA
24863 832 274 35 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 277 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 YEBO-AS
24835 182 80 8 RAYA Telecom - Egypt
33776 161 12 16 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
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 3405 3807 198 bellsouth.net, inc.
7029 3405 1014 159 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1928 11102 679 Korea Telecom (KIX)
1785 1876 680 127 AppliedTheory Corporation
8402 1850 544 16 Corbina telecom
10620 1761 326 160 TVCABLE BOGOTA
17974 1737 503 37 PT TELEKOMUNIKASI INDONESIA
28573 1686 1092 57 Types of queries are: POCs, o
7545 1643 303 87 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3405 3246 Windstream Communications Inc
18566 2091 1914 Covad Communications
8402 1850 1834 Corbina telecom
1785 1876 1749 AppliedTheory Corporation
17974 1737 1700 PT TELEKOMUNIKASI INDONESIA
28573 1686 1629 Types of queries are: POCs, o
10620 1761 1601 TVCABLE BOGOTA
7545 1643 1556 TPG Internet Pty Ltd
22773 1544 1433 Cox Communications, Inc.
2118 1421 1408 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 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
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.0.0/16 54500 EGIHosting
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 /9:12 /10:28 /11:81 /12:235
/13:458 /14:824 /15:1505 /16:12320 /17:6504 /18:10782
/19:21005 /20:29718 /21:29799 /22:40298 /23:37639 /24:210686
/25:68 /26:76 /27:110 /28:276 /29:105 /30:508
/31:20 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3405 Windstream Communications Inc
6389 2103 3405 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1828 1850 Corbina telecom
10620 1658 1761 TVCABLE BOGOTA
30036 1370 1421 Mediacom Communications Corp
11492 1125 1162 Cable One
8452 1064 1254 TEDATA
1785 1060 1876 AppliedTheory Corporation
7011 1034 1149 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:525 2:795 4:18 8:394 12:1964 13:1
14:600 15:12 16:3 17:7 20:8 23:141
24:1758 27:1231 31:989 32:124 33:2 34:2
36:9 37:238 38:784 39:4 40:117 41:3007
42:128 44:3 46:1408 47:3 49:345 50:514
52:13 54:5 55:9 56:3 57:47 58:936
59:496 60:284 61:1200 62:983 63:2027 64:4161
65:2284 66:4504 67:2072 68:1342 69:3281 70:931
71:309 72:1810 73:1 74:2627 75:481 76:332
77:978 78:963 79:501 80:1212 81:895 82:646
83:542 84:618 85:1190 86:735 87:924 88:350
89:1579 90:285 91:4559 92:517 93:1409 94:1381
95:1117 96:378 97:316 98:836 99:38 100:5
101:238 103:895 106:64 107:172 108:200 109:1546
110:750 111:861 112:442 113:553 114:622 115:776
116:883 117:724 118:919 119:1267 120:332 121:712
122:1627 123:1090 124:1385 125:1340 128:542 129:195
130:265 131:592 132:169 133:21 134:238 135:63
136:212 137:184 138:275 139:157 140:491 141:236
142:390 143:416 144:500 145:69 146:492 147:252
148:761 149:300 150:161 151:176 152:449 153:171
154:7 155:445 156:212 157:383 158:162 159:519
160:329 161:245 162:344 163:186 164:531 165:414
166:564 167:463 168:812 169:149 170:842 171:117
172:4 173:1734 174:600 175:444 176:545 177:540
178:1287 180:1220 181:67 182:773 183:285 184:443
185:1 186:2107 187:849 188:1053 189:1205 190:5540
192:6015 193:5596 194:4392 195:3451 196:1295 197:168
198:3643 199:4453 200:5751 201:1770 202:8453 203:8723
204:4362 205:2456 206:2768 207:2797 208:4078 209:3630
210:2784 211:1477 212:2009 213:1884 214:857 215:102
216:5061 217:1532 218:543 219:333 220:1235 221:553
222:347 223:326
End of report