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.

Friday, November 1, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Sat 02 Nov, 2013

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

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

BGP routing table entries examined: 466352
Prefixes after maximum aggregation: 187915
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233438
Total ASes present in the Internet Routing Table: 45290
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 35336
Origin ASes announcing only one prefix: 16294
Transit ASes present in the Internet Routing Table: 5864
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 800
Unregistered ASNs in the Routing Table: 213
Number of 32-bit ASNs allocated by the RIRs: 5284
Number of 32-bit ASNs visible in the Routing Table: 4090
Prefixes from 32-bit ASNs in the Routing Table: 12621
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 902
Number of addresses announced to Internet: 2646742784
Equivalent to 157 /8s, 194 /16s and 23 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 162144

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

Prefixes being announced by APNIC Region ASes: 108916
Total APNIC prefixes after maximum aggregation: 33112
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111007
Unique aggregates announced from the APNIC address blocks: 47254
APNIC Region origin ASes present in the Internet Routing Table: 4861
APNIC Prefixes per ASN: 22.84
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 816
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 723
Number of APNIC addresses announced to Internet: 723609088
Equivalent to 43 /8s, 33 /16s and 102 /24s
Percentage of available APNIC address space announced: 84.6

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: 161934
Total ARIN prefixes after maximum aggregation: 81212
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162971
Unique aggregates announced from the ARIN address blocks: 75817
ARIN Region origin ASes present in the Internet Routing Table: 15892
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6018
ARIN Region transit ASes present in the Internet Routing Table: 1635
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 32
Number of ARIN addresses announced to Internet: 1072771840
Equivalent to 63 /8s, 241 /16s and 51 /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: 118450
Total RIPE prefixes after maximum aggregation: 61050
RIPE Deaggregation factor: 1.94
Prefixes being announced from the RIPE address blocks: 122093
Unique aggregates announced from the RIPE address blocks: 78879
RIPE Region origin ASes present in the Internet Routing Table: 17494
RIPE Prefixes per ASN: 6.98
RIPE Region origin ASes announcing only one prefix: 8294
RIPE Region transit ASes present in the Internet Routing Table: 2816
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2450
Number of RIPE addresses announced to Internet: 656599296
Equivalent to 39 /8s, 34 /16s and 233 /24s
Percentage of available RIPE address space announced: 95.5

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: 52202
Total LACNIC prefixes after maximum aggregation: 9831
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57160
Unique aggregates announced from the LACNIC address blocks: 26734
LACNIC Region origin ASes present in the Internet Routing Table: 2031
LACNIC Prefixes per ASN: 28.14
LACNIC Region origin ASes announcing only one prefix: 549
LACNIC Region transit ASes present in the Internet Routing Table: 389
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 879
Number of LACNIC addresses announced to Internet: 142286080
Equivalent to 8 /8s, 123 /16s and 29 /24s
Percentage of available LACNIC address space announced: 84.8

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: 11569
Total AfriNIC prefixes after maximum aggregation: 2575
AfriNIC Deaggregation factor: 4.49
Prefixes being announced from the AfriNIC address blocks: 12218
Unique aggregates announced from the AfriNIC address blocks: 4011
AfriNIC Region origin ASes present in the Internet Routing Table: 673
AfriNIC Prefixes per ASN: 18.15
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48059136
Equivalent to 2 /8s, 221 /16s and 83 /24s
Percentage of available AfriNIC address space announced: 47.7

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 2711 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 644 Korea Telecom (KIX)
7545 2101 319 111 TPG Internet Pty Ltd
4755 1787 391 188 TATA Communications formerly
9829 1539 1242 48 BSNL National Internet Backbo
4808 1289 2193 367 CNCGROUP IP network: China169
9498 1210 309 74 BHARTI Airtel Ltd.
9583 1187 90 513 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1092 380 165 Bharti Airtel Ltd., Telemedia

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

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

ASN No of nets /20 equiv MaxAgg Description
6389 3056 3688 56 BellSouth.net Inc.
22773 2188 2939 138 Cox Communications, Inc.
18566 2054 379 178 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
20115 1681 1654 607 Charter Communications
4323 1637 1102 421 Time Warner Telecom
701 1506 11145 783 MCI Communications Services,
30036 1382 312 580 Mediacom Communications Corp
7018 1338 17795 874 AT&T WorldNet Services
6983 1292 756 579 ITC^Deltacom

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

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

ASN No of nets /20 equiv MaxAgg Description
8402 1795 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1119 410 854 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 887 99 49 TOV "Bank-Inform"
6849 861 356 30 JSC UKRTELECOM,
8551 758 370 41 Bezeq International
12479 675 798 55 Uni2 Autonomous System
6830 551 2324 421 UPC Distribution Services
35228 540 246 16 Avatar Broadband Limited

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3425 1781 85 NET Servicos de Comunicao S.A
10620 2641 428 237 TVCABLE BOGOTA
7303 1724 1144 233 Telecom Argentina Stet-France
18881 1523 844 20 Global Village Telecom
8151 1341 2840 415 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 814 93 91 Telconet S.A
6147 792 373 27 Telefonica Del Peru
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/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 884 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 388 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 259 921 216 The Internet Solution
36992 227 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

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

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

ASN No of nets /20 equiv MaxAgg Description
28573 3425 1781 85 NET Servicos de Comunicao S.A
6389 3056 3688 56 BellSouth.net Inc.
17974 2711 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2641 428 237 TVCABLE BOGOTA
22773 2188 2939 138 Cox Communications, Inc.
4766 2138 11550 644 Korea Telecom (KIX)
7545 2101 319 111 TPG Internet Pty Ltd
18566 2054 379 178 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
36998 1854 112 5 Sudanese Mobile Telephone (ZA

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

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

ASN No of nets Net Savings Description
6389 3056 3000 BellSouth.net Inc.
17974 2711 2622 PT TELEKOMUNIKASI INDONESIA
10620 2641 2404 TVCABLE BOGOTA
22773 2188 2050 Cox Communications, Inc.
7545 2101 1990 TPG Internet Pty Ltd
1785 2029 1903 PaeTec Communications, Inc.
18566 2054 1876 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
8402 1795 1778 OJSC "Vimpelcom"
4755 1787 1599 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/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.
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio

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

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

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 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 40676 Psychz Networks
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:474 /14:913 /15:1593 /16:12725 /17:6620 /18:11124
/19:22827 /20:32519 /21:35370 /22:50004 /23:43515 /24:248234
/25:3 /26:5 /27:8 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2008 2054 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1709 3056 BellSouth.net Inc.
8402 1497 1795 OJSC "Vimpelcom"
22773 1454 2188 Cox Communications, Inc.
30036 1230 1382 Mediacom Communications Corp
11492 1200 1241 Cable One
1785 1080 2029 PaeTec Communications, Inc.
6983 1032 1292 ITC^Deltacom
22561 968 1245 Digital Teleport, Inc

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

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

1:878 2:819 3:3 4:17 5:996 6:21
8:613 12:1892 13:3 14:885 15:11 16:3
17:18 18:19 20:21 23:506 24:1741 27:1607
31:1487 32:45 33:2 34:5 36:81 37:1878
38:922 39:4 40:178 41:3184 42:225 44:14
46:2017 47:10 49:682 50:827 52:12 54:42
55:4 56:2 57:26 58:1080 59:572 60:373
61:1463 62:1206 63:1985 64:4374 65:2341 66:4138
67:2100 68:1103 69:3284 70:870 71:489 72:2035
74:2556 75:328 76:295 77:1163 78:1063 79:642
80:1294 81:1017 82:674 83:632 84:582 85:1252
86:420 87:1008 88:561 89:1598 90:150 91:5643
92:611 93:1595 94:2007 95:1592 96:508 97:341
98:1040 99:39 100:30 101:621 103:3512 105:528
106:131 107:212 108:533 109:1913 110:957 111:1099
112:592 113:807 114:746 115:1046 116:994 117:829
118:1168 119:1270 120:364 121:749 122:1828 123:1254
124:1317 125:1432 128:638 129:229 130:329 131:666
132:362 133:157 134:552 135:67 136:279 137:267
138:349 139:177 140:192 141:336 142:539 143:399
144:494 145:87 146:512 147:393 148:764 149:367
150:158 151:587 152:413 153:205 154:51 155:490
156:286 157:423 158:282 159:683 160:359 161:453
162:816 163:225 164:626 165:581 166:257 167:632
168:1045 169:127 170:1131 171:182 172:25 173:1603
174:684 175:516 176:1274 177:2373 178:1938 179:193
180:1581 181:792 182:1337 183:457 184:662 185:987
186:2636 187:1475 188:1835 189:1257 190:7240 192:7064
193:5407 194:4031 195:3349 196:1320 197:1014 198:4731
199:5479 200:6090 201:2528 202:8914 203:8913 204:4519
205:2643 206:2840 207:2831 208:4006 209:3622 210:2945
211:1559 212:2122 213:1975 214:896 215:92 216:5363
217:1678 218:624 219:319 220:1275 221:566 222:327
223:504

End of report
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