The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Tuesday, December 3, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Wed 04 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 469399
Prefixes after maximum aggregation: 188419
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234614
Total ASes present in the Internet Routing Table: 45492
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35481
Origin ASes announcing only one prefix: 16297
Transit ASes present in the Internet Routing Table: 5778
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1104
Unregistered ASNs in the Routing Table: 304
Number of 32-bit ASNs allocated by the RIRs: 5437
Number of 32-bit ASNs visible in the Routing Table: 4233
Prefixes from 32-bit ASNs in the Routing Table: 13327
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1267
Number of addresses announced to Internet: 2657098492
Equivalent to 158 /8s, 96 /16s and 26 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162993

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110210
Total APNIC prefixes after maximum aggregation: 33456
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112526
Unique aggregates announced from the APNIC address blocks: 47738
APNIC Region origin ASes present in the Internet Routing Table: 4844
APNIC Prefixes per ASN: 23.23
APNIC Region origin ASes announcing only one prefix: 1224
APNIC Region transit ASes present in the Internet Routing Table: 827
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 768
Number of APNIC addresses announced to Internet: 728549884
Equivalent to 43 /8s, 108 /16s and 201 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161857
Total ARIN prefixes after maximum aggregation: 81303
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162654
Unique aggregates announced from the ARIN address blocks: 75683
ARIN Region origin ASes present in the Internet Routing Table: 15887
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6012
ARIN Region transit ASes present in the Internet Routing Table: 1614
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 40
Number of ARIN addresses announced to Internet: 1073527808
Equivalent to 63 /8s, 252 /16s and 188 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119047
Total RIPE prefixes after maximum aggregation: 61035
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122902
Unique aggregates announced from the RIPE address blocks: 78844
RIPE Region origin ASes present in the Internet Routing Table: 17521
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8295
RIPE Region transit ASes present in the Internet Routing Table: 2767
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2508
Number of RIPE addresses announced to Internet: 656378368
Equivalent to 39 /8s, 31 /16s and 138 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52460
Total LACNIC prefixes after maximum aggregation: 9829
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 57707
Unique aggregates announced from the LACNIC address blocks: 27306
LACNIC Region origin ASes present in the Internet Routing Table: 2045
LACNIC Prefixes per ASN: 28.22
LACNIC Region origin ASes announcing only one prefix: 561
LACNIC Region transit ASes present in the Internet Routing Table: 378
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 910
Number of LACNIC addresses announced to Internet: 145889280
Equivalent to 8 /8s, 178 /16s and 24 /24s
Percentage of available LACNIC address space announced: 87.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11692
Total AfriNIC prefixes after maximum aggregation: 2579
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12343
Unique aggregates announced from the AfriNIC address blocks: 4026
AfriNIC Region origin ASes present in the Internet Routing Table: 685
AfriNIC Prefixes per ASN: 18.02
AfriNIC Region origin ASes announcing only one prefix: 205
AfriNIC Region transit ASes present in the Internet Routing Table: 133
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48534272
Equivalent to 2 /8s, 228 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2718 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2111 319 111 TPG Internet Pty Ltd
4755 1794 392 190 TATA Communications formerly
9829 1541 1244 47 BSNL National Internet Backbo
9583 1251 95 510 Sify Limited
9498 1217 309 73 BHARTI Airtel Ltd.
7552 1166 1080 13 Vietel Corporation
24560 1102 382 166 Bharti Airtel Ltd., Telemedia
4808 1042 1945 300 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3042 3688 53 BellSouth.net Inc.
22773 2212 2939 138 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2045 685 133 PaeTec Communications, Inc.
20115 1684 1654 601 Charter Communications
4323 1653 1114 421 Time Warner Telecom
701 1507 11144 780 MCI Communications Services,
30036 1373 311 576 Mediacom Communications Corp
7018 1332 17779 872 AT&T WorldNet Services
6983 1293 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1930 544 16 OJSC "Vimpelcom"
34984 1365 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1184 447 894 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 895 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 786 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 676 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3422 1829 94 NET Servicos de Comunicao S.A
10620 2673 433 213 Telmex Colombia S.A.
7303 1730 1151 233 Telecom Argentina Stet-France
18881 1706 908 20 Global Village Telecom
8151 1349 2850 416 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 824 94 92 Telconet S.A
6147 795 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 771 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 873 338 26 LINKdotNET AS number
6713 551 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 251 921 209 The Internet Solution
29571 229 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3422 1829 94 NET Servicos de Comunicao S.A
6389 3042 3688 53 BellSouth.net Inc.
17974 2718 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2673 433 213 Telmex Colombia S.A.
22773 2212 2939 138 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2111 319 111 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2045 685 133 PaeTec Communications, Inc.
8402 1930 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3042 2989 BellSouth.net Inc.
17974 2718 2630 PT TELEKOMUNIKASI INDONESIA
10620 2673 2460 Telmex Colombia S.A.
22773 2212 2074 Cox Communications, Inc.
7545 2111 2000 TPG Internet Pty Ltd
8402 1930 1914 OJSC "Vimpelcom"
1785 2045 1912 PaeTec Communications, Inc.
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1706 1686 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

Complete listing at http://thyme.rand.apnic.net/au/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:476 /14:938 /15:1645 /16:12868 /17:6789 /18:11192
/19:23101 /20:32894 /21:35630 /22:50052 /23:43780 /24:249407
/25:44 /26:33 /27:50 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3042 BellSouth.net Inc.
8402 1614 1930 OJSC "Vimpelcom"
22773 1465 2212 Cox Communications, Inc.
30036 1213 1373 Mediacom Communications Corp
11492 1195 1233 Cable One
1785 1088 2045 PaeTec Communications, Inc.
6983 1035 1293 ITC^Deltacom
22561 964 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:918 2:863 3:3 4:17 5:806 6:21
8:609 12:1874 13:3 14:880 15:11 16:3
17:18 18:19 20:25 23:612 24:1771 27:1713
31:1515 32:45 33:2 34:5 36:95 37:1940
38:910 39:5 40:181 41:3247 42:323 44:14
46:2051 47:10 49:700 50:852 52:12 54:44
55:4 56:4 57:26 58:1095 59:580 60:367
61:1464 62:1236 63:1977 64:4387 65:2347 66:4145
67:2097 68:1096 69:3293 70:897 71:503 72:2013
74:2587 75:327 76:304 77:1217 78:1043 79:670
80:1280 81:1054 82:631 83:694 84:584 85:1254
86:382 87:1033 88:547 89:1564 90:155 91:5680
92:613 93:1608 94:2100 95:1516 96:513 97:349
98:1062 99:41 100:31 101:409 103:3746 105:530
106:143 107:217 108:535 109:2006 110:974 111:1117
112:581 113:802 114:758 115:1034 116:1009 117:813
118:1219 119:1287 120:367 121:745 122:1837 123:1269
124:1377 125:1468 128:626 129:224 130:338 131:661
132:347 133:158 134:293 135:72 136:275 137:246
138:351 139:165 140:172 141:335 142:537 143:408
144:495 145:90 146:538 147:426 148:727 149:369
150:153 151:485 152:413 153:207 154:42 155:507
156:307 157:369 158:283 159:695 160:361 161:456
162:903 163:206 164:621 165:581 166:276 167:638
168:1028 169:124 170:1105 171:185 172:11 173:1622
174:667 175:531 176:1318 177:2503 178:1872 179:308
180:1617 181:885 182:1409 183:480 184:626 185:1088
186:2652 187:1431 188:1944 189:1240 190:7225 192:7015
193:5433 194:4026 195:3363 196:1326 197:1038 198:4703
199:5465 200:6046 201:2490 202:8908 203:8937 204:4473
205:2630 206:2802 207:2746 208:3951 209:3648 210:2971
211:1576 212:2153 213:1990 214:888 215:84 216:5399
217:1707 218:633 219:317 220:1263 221:587 222:330
223:552

End of report
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