Routing Table Report 00:00 GMT Thu 29 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: 406608
Prefixes after maximum aggregation: 173103
Deaggregation factor: 2.35
Unique aggregates announced to Internet: 196040
Total ASes present in the Internet Routing Table: 40558
Prefixes per ASN: 10.03
Origin-only ASes present in the Internet Routing Table: 32944
Origin ASes announcing only one prefix: 15502
Transit ASes present in the Internet Routing Table: 5458
Transit-only ASes present in the Internet Routing Table: 146
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 5851
Unregistered ASNs in the Routing Table: 279
Number of 32-bit ASNs allocated by the RIRs: 2338
Number of 32-bit ASNs visible in the Routing Table: 2156
Prefixes from 32-bit ASNs in the Routing Table: 5241
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 1191
Number of addresses announced to Internet: 2529546069
Equivalent to 150 /8s, 197 /16s and 207 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
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: 171063
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97028
Total APNIC prefixes after maximum aggregation: 31013
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 93507
Unique aggregates announced from the APNIC address blocks: 39177
APNIC Region origin ASes present in the Internet Routing Table: 4662
APNIC Prefixes per ASN: 20.06
APNIC Region origin ASes announcing only one prefix: 1248
APNIC Region transit ASes present in the Internet Routing Table: 740
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 642299136
Equivalent to 38 /8s, 72 /16s and 181 /24s
Percentage of available APNIC address space announced: 81.5
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: 152044
Total ARIN prefixes after maximum aggregation: 78021
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123182
Unique aggregates announced from the ARIN address blocks: 49971
ARIN Region origin ASes present in the Internet Routing Table: 14965
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5691
ARIN Region transit ASes present in the Internet Routing Table: 1579
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805378560
Equivalent to 48 /8s, 1 /16s and 26 /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: 102780
Total RIPE prefixes after maximum aggregation: 53376
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 93205
Unique aggregates announced from the RIPE address blocks: 57207
RIPE Region origin ASes present in the Internet Routing Table: 16366
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7964
RIPE Region transit ASes present in the Internet Routing Table: 2641
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1465
Number of RIPE addresses announced to Internet: 502429068
Equivalent to 29 /8s, 242 /16s and 117 /24s
Percentage of available RIPE address space announced: 80.9
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: 40751
Total LACNIC prefixes after maximum aggregation: 8130
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 40241
Unique aggregates announced from the LACNIC address blocks: 19680
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.63
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 297
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 500
Number of LACNIC addresses announced to Internet: 98736136
Equivalent to 5 /8s, 226 /16s and 152 /24s
Percentage of available LACNIC address space announced: 65.4
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: 8315
Total AfriNIC prefixes after maximum aggregation: 2334
AfriNIC Deaggregation factor: 3.56
Prefixes being announced from the AfriNIC address blocks: 6367
Unique aggregates announced from the AfriNIC address blocks: 2458
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 12.17
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 30564864
Equivalent to 1 /8s, 210 /16s and 98 /24s
Percentage of available AfriNIC address space announced: 45.5
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 1925 11101 676 Korea Telecom (KIX)
17974 1784 502 61 PT TELEKOMUNIKASI INDONESIA
7545 1653 301 89 TPG Internet Pty Ltd
4755 1572 386 159 Videsh Sanchar Nigam Ltd. Aut
9583 1241 95 543 Sify Limited
9829 1209 1025 29 BSNL National Internet Backbo
7552 1177 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd.
18101 948 130 160 Reliance Infocom Ltd Internet
4808 927 1874 270 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
7029 3375 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
18566 2092 383 179 Covad Communications
1785 1884 680 128 AppliedTheory Corporation
20115 1637 1559 626 Charter Communications
4323 1590 1074 376 Time Warner Telecom
22773 1552 2910 111 Cox Communications, Inc.
30036 1414 256 744 Mediacom Communications Corp
7018 1280 13742 831 AT&T WorldNet Services
11492 1184 216 364 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
8402 1789 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
286 1063 853 198 KPNQwest Backbone AS
31148 673 37 9 FreeNet ISP
34984 667 188 174 Tellcom Iletisim Hizmetleri
12479 656 658 57 Uni2 Autonomous System
6830 642 1943 413 UPC Distribution Services
20940 633 205 495 Akamai Technologies European
8551 598 360 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 1808 329 126 TVCABLE BOGOTA
28573 1746 1105 58 Types of queries are: POCs, o
8151 1532 3000 328 Uninet S.A. de C.V.
6503 1355 418 66 AVANTEL, S.A.
7303 1351 826 190 Telecom Argentina Stet-France
26615 902 700 28 Types of queries are: POCs, o
27947 689 74 100 Telconet S.A
11172 637 91 73 Alestra
22047 584 326 15 Types of queries are: POCs, o
3816 567 241 105 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 803 731 220 TEDATA
24863 792 274 35 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 272 924 229 The Internet Solution
12258 197 28 62 YEBO-AS
33776 179 12 20 Starcomms Nigeria Limited
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 161 664 84 Johnnic e-Ventures
29571 159 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
7029 3375 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
18566 2092 383 179 Covad Communications
4766 1925 11101 676 Korea Telecom (KIX)
1785 1884 680 128 AppliedTheory Corporation
10620 1808 329 126 TVCABLE BOGOTA
8402 1789 544 16 Corbina telecom
17974 1784 502 61 PT TELEKOMUNIKASI INDONESIA
28573 1746 1105 58 Types of queries are: POCs, o
7545 1653 301 89 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
6389 3371 3175 bellsouth.net, inc.
18566 2092 1913 Covad Communications
8402 1789 1773 Corbina telecom
1785 1884 1756 AppliedTheory Corporation
17974 1784 1723 PT TELEKOMUNIKASI INDONESIA
28573 1746 1688 Types of queries are: POCs, o
10620 1808 1682 TVCABLE BOGOTA
7545 1653 1564 TPG Internet Pty Ltd
22773 1552 1441 Cox Communications, Inc.
2118 1427 1414 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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,
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
23.28.192.0/18 29737 WideOpenWest LLC
23.29.0.0/20 4323 Time Warner Telecom
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 /12:233
/13:457 /14:837 /15:1511 /16:12338 /17:6531 /18:10869
/19:21114 /20:30008 /21:30113 /22:40618 /23:37949 /24:212269
/25:69 /26:76 /27:110 /28:281 /29:103 /30:503
/31:17 /32:462
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3035 3375 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2041 2092 Covad Communications
8402 1766 1789 Corbina telecom
10620 1705 1808 TVCABLE BOGOTA
30036 1359 1414 Mediacom Communications Corp
11492 1147 1184 Cable One
6503 1126 1355 AVANTEL, S.A.
1785 1064 1884 AppliedTheory Corporation
7011 1050 1164 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:741 4:18 6:3 8:394 12:1984
13:1 14:606 15:12 16:3 17:7 20:8
23:159 24:1765 27:1256 31:966 32:120 33:2
34:2 36:8 37:304 38:787 39:4 40:120
41:2664 42:133 44:3 46:1460 47:3 49:347
50:537 52:12 54:6 55:11 56:3 57:41
58:972 59:495 60:278 61:1215 62:983 63:2012
64:4217 65:2278 66:4532 67:2052 68:1330 69:3298
70:949 71:466 72:1850 73:1 74:2649 75:506
76:331 77:962 78:1003 79:511 80:1218 81:904
82:675 83:547 84:524 85:1207 86:416 87:919
88:346 89:1633 90:297 91:4659 92:521 93:1390
94:1465 95:1164 96:378 97:315 98:838 99:37
100:6 101:168 103:921 106:66 107:179 108:215
109:1275 110:764 111:905 112:445 113:563 114:633
115:809 116:922 117:723 118:924 119:1212 120:360
121:720 122:1666 123:1110 124:1368 125:1264 128:561
129:194 130:262 131:597 132:173 133:21 134:245
135:63 136:213 137:189 138:351 139:157 140:494
141:241 142:387 143:413 144:503 145:69 146:487
147:257 148:791 149:298 150:157 151:176 152:459
153:171 154:7 155:446 156:215 157:381 158:171
159:530 160:342 161:249 162:343 163:187 164:555
165:407 166:562 167:464 168:808 169:149 170:847
171:125 172:4 173:1737 174:616 175:447 176:458
177:593 178:1299 180:1200 181:72 182:765 183:277
184:448 185:1 186:2149 187:1006 188:1161 189:1687
190:5534 192:6028 193:5618 194:4646 195:3639 196:1291
197:124 198:3638 199:4481 200:5812 201:1899 202:8466
203:8631 204:4352 205:2473 206:2762 207:2799 208:4075
209:3639 210:2783 211:1479 212:2027 213:1917 214:871
215:108 216:5086 217:1528 218:544 219:342 220:1238
221:555 222:331 223:329
End of report
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